Prosecution Insights
Last updated: April 19, 2026
Application No. 18/277,393

LITHIUM NICKEL-BASED COMPOSITE OXIDE AS A POSITIVE ELECTRODE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM-ION BATTERIES

Non-Final OA §103§112§DP
Filed
Aug 16, 2023
Examiner
LEE, JAMES
Art Unit
1725
Tech Center
1700 — Chemical & Materials Engineering
Assignee
UMICORE
OA Round
1 (Non-Final)
75%
Grant Probability
Favorable
1-2
OA Rounds
3y 3m
To Grant
94%
With Interview

Examiner Intelligence

Grants 75% — above average
75%
Career Allow Rate
531 granted / 709 resolved
+9.9% vs TC avg
Strong +19% interview lift
Without
With
+19.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
42 currently pending
Career history
751
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
45.6%
+5.6% vs TC avg
§102
25.1%
-14.9% vs TC avg
§112
22.3%
-17.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 709 resolved cases

Office Action

§103 §112 §DP
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 25-2 7 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Claim 2 5 recites the limitation "the secondary particle median size D50". There is insufficient antecedent basis for this limitation in the claim. Claim 2 6 recites the limitation "the carbon content". There is insufficient antecedent basis for this limitation in the claim. Claim 2 7 recites the limitation "the Zr thickness ". There is insufficient antecedent basis for this limitation in the claim. The following is a quotation of 35 U.S.C. 112(d): (d) REFERENCE IN DEPENDENT FORMS.—Subject to subsection (e), a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. The following is a quotation of pre-AIA 35 U.S.C. 112, fourth paragraph: Subject to the following paragraph [i.e., the fifth paragraph of pre-AIA 35 U.S.C. 112], a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. Claim 21- 22 are rejected under 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, 4th paragraph, as being of improper dependent form for failing to further limit the subject matter of the claim upon which it depends, or for failing to include all the limitations of the claim upon which it depends. Claim 2 1 recites the limitation “x≥ 55 .0 mol %” which does not specify an upper range and, thus, fails to further limit the range recited in claim 18 “Ni in a content x between 50 .0 mol % and 7 5.0 mol %, relative to M′”. Claim 2 2 recites the limitation “x≤ 72 .0 mol %” which does not specify a lower range and, thus, fails to further limit the range recited in claim 18 “Ni in a content x between 50 .0 mol % and 7 5.0 mol %, relative to M′”. Applicant may cancel the claim(s), amend the claim(s) to place the claim(s) in proper dependent form, rewrite the claim(s) in independent form, or present a sufficient showing that the dependent claim(s) complies with the statutory requirements. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claim(s) 18-2 6, 28-2 9 , 3 1 - 3 3 is/are rejected under 35 U.S.C. 103 as being unpatentable over Fujimoto ( JP2021197209A , refer to English equivalent US 2023/0187628A1) in view of JP2004311408A, refer to English machine translation by EPO. Regarding 18, Fujimoto discloses a positive electrode active material for solid-state batteries (Title, Abstract), wherein the positive electrode active material comprises Li, M′, and oxygen (lithium transition metal composite oxide [0058]-[0087]), wherein M′ comprises: Ni in a content x between 70.0 mol % and 95.0 mol %, relative to M′ (nickel content is 1-x-y, wherein 0<x≤0.22 and 0≤y≤0.15 [0059]; It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have selected the overlapping portion of the ranges disclosed by the reference because selection of overlapping portion of ranges has been held to be a prima facie case of obviousness. In re Malagari , 182 USPQ 549.); Co in a content y between 0.0 mol % and 40.0 mol %, relative to M′ (cobalt content is x, wherein 0<x≤0.22 [0059]; It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have selected the overlapping portion of the ranges disclosed by the reference because selection of overlapping portion of ranges has been held to be a prima facie case of obviousness. In re Malagari , 182 USPQ 549.); Mn in a content z between 0.0 mol % and 40.0 mol %, relative to M′, D in a content a between 0.0 mol % and 2.0 mol %, relative to M′, wherein D comprises at least one element of the group consisting of: Al, B, Ba, Ca, Cr, Fe, Mg, Mo, Nb, S, Si, Sr, Ti, Y, V, W, and Zn (element M, which may be selected from a group including Mg, Al, Ca, Cr, Fe, Mg, Mo, Nb, Si, Ti, V, W, and Zn, has a content of y, wherein 0≤y≤0.15 [0059]; It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have selected the overlapping portion of the ranges disclosed by the reference because selection of overlapping portion of ranges has been held to be a prima facie case of obviousness. In re Malagari , 182 USPQ 549.), and, wherein the positive electrode active material comprises secondary particles having a plurality of primary particles (secondary particles formed by aggregating primary particles [0074]), wherein said primary particles have an average diameter of between 170 nm to 340 nm determined by measuring primary particle size in an image taken by SEM (primary particles with particle size of 0.1 micrometer to 2.0 micrometers [0074]; It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have selected the overlapping portion of the ranges disclosed by the reference because selection of overlapping portion of ranges has been held to be a prima facie case of obviousness. In re Malagari , 182 USPQ 549.). Although Fujimoto further discloses a zirconium content of 0.13 mmol or more and 0.30 mmol or less per 1 m 2 of a surface of the particles or 0.90 mass % measured using ICP ([0078]-[0081], [0182]) and the positive electrode active material has a Zr content Zr B , wherein Zr B is determined by XPS analysis, wherein Zr B is expressed as molar fraction compared to the sum of molar fractions of Co, Mn, Ni, and Zr as measured by XPS analysis (ratio Zrs/Nis+Cos+Zrs of a sum of substance quantities of Ni, Co, Zr and a substance quantity of Zr existing on a surface of the positive electrode active material measured using XPS, see Abstract, [0084]-[0085], [0183]), the reference does not expressly disclose Zr in a content b between 0.1 mol % and 5.0 mol %, relative to M′, wherein x, y, z, a, and b are measured by ICP, wherein x+y+z+a+b is 100.0 mol %, wherein the ratio Zr B /Zr A >50.0. JP2004311408A discloses a proportion of zirconium compound present on the surface of the lithium transition metal composite oxide measured by ICP is preferably 0.01 to 2 mol% of zirconium with respect to the lithium transition metal composite oxide, wherein a content of 0.01 mol% or more is preferable because zirconium can be present on the entire surface of the lithium transition metal composite oxide and 2 mol% or less is preferable because discharge capacity decreases, such that low temperature characteristics, cycle characteristics and thermal stability are improved, and high load characteristics and low temperature load characteristics are improved (see p.4). JP2004311408A further discloses determining the zirconium compound using ICP (see p.3,12). It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to optimize the zirconium content (mol%) in order to arrive at a desired balance between surface coverage and discharge capacity, leading to improvement in low temperature characteristics, cycle characteristics, thermal stability, high load characteristics and low temperature load characteristics (MPEP 2144.05). Accordingly, the combination envisages Zr B between 0.80 and 0.97 (see Fujimoto: Abstract, [0084]-[0085], [0183]) and Zr A between 0.01 to 2 mol%, i.e., between 0.0001 and 0.02 (see JP2004311408A: p.4) with the calculated ratio Zr B /Zr A between 40 and 9700 which overlaps with the claimed range. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have selected the overlapping portion of the ranges disclosed by the reference because selection of overlapping portion of ranges has been held to be a prima facie case of obviousness. In re Malagari , 182 USPQ 549. Regarding claim 19 , modified Fujimoto discloses all of the claim limitations as set forth above. Modified Fujimoto further discloses the ratio Zr B /Zr A is at least 80 (Zr B between 0.80 and 0.97, see Fujimoto, Abstract, [0084]-[0085], [0183]; Zr A between 0.0001 and 0.02, see JP2004311408A, p.4; calculated ratio Zr B /Zr A between 40 and 9700 which overlaps with the claimed range. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have selected the overlapping portion of the ranges disclosed by the reference because selection of overlapping portion of ranges has been held to be a prima facie case of obviousness. In re Malagari , 182 USPQ 549.). Regarding claim 2 20 , modified Fujimoto discloses all of the claim limitations as set forth above. Modified Fujimoto further discloses the ratio Zr B /Zr A is at most 500 (Zr B between 0.80 and 0.97, see Fujimoto, Abstract, [0084]-[0085], [0183]; Zr A between 0.0001 and 0.02, see JP2004311408A, p.4; calculated ratio Zr B /Zr A between 40 and 9700 which overlaps with the claimed range. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have selected the overlapping portion of the ranges disclosed by the reference because selection of overlapping portion of ranges has been held to be a prima facie case of obviousness. In re Malagari , 182 USPQ 549.). Regarding claim 2 1 , modified Fujimoto discloses all of the claim limitations as set forth above. Fujimoto further discloses x≥ 55 .0 mol % (nickel content is 1-x-y, wherein 0<x≤0.22 and 0≤y≤0.15 [0059]; It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have selected the overlapping portion of the ranges disclosed by the reference because selection of overlapping portion of ranges has been held to be a prima facie case of obviousness. In re Malagari , 182 USPQ 549.). Regarding claim 2 2 , modified Fujimoto discloses all of the claim limitations as set forth above. Fujimoto further discloses x≤ 72 .0 mol % (nickel content is 1-x-y, wherein 0<x≤0.22 and 0≤y≤0.15 [0059]; It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have selected the overlapping portion of the ranges disclosed by the reference because selection of overlapping portion of ranges has been held to be a prima facie case of obviousness. In re Malagari , 182 USPQ 549.). Regarding claim 2 3 , modified Fujimoto discloses all of the claim limitations as set forth above. Fujimoto further discloses 0 mol %≤y≤20 mol % (cobalt content is x, wherein 0<x≤0.22 [0059]; It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have selected the overlapping portion of the ranges disclosed by the reference because selection of overlapping portion of ranges has been held to be a prima facie case of obviousness. In re Malagari , 182 USPQ 549.). Regarding claim 2 4 , modified Fujimoto discloses all of the claim limitations as set forth above. JP2004311408A further discloses b is at least 0.10 mol % and at most 1.00 mol % , relative to M’ (0.01 to 2 mol%, see p.4; It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have selected the overlapping portion of the ranges disclosed by the reference because selection of overlapping portion of ranges has been held to be a prima facie case of obviousness. In re Malagari , 182 USPQ 549.). Regarding claim 2 5 , modified Fujimoto discloses all of the claim limitations as set forth above. Fujimoto further discloses the secondary particle median size D50 is at least 2.0 μm and at most 15.0 μm, as determined by laser diffraction particle size analysis (secondary particle with a particle size of 3 to 15 micrometers [0074]). Regarding claim 2 6 , modified Fujimoto discloses all of the claim limitations as set forth above. Fujimoto further discloses the carbon content is at least 600 ppm and at most 3 000 ppm, as determined by carbon analyzer (carbon content is 0.05 to 0.40 mass% [0090]; It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have selected the overlapping portion of the ranges disclosed by the r eference because selection of overlapping portion of ranges has been held to be a prima facie case of obviousness. In re Malagari , 182 USPQ 549.). Regarding claim 28, modified Fujimoto discloses all of the claim limitations as set forth above. Fujimoto further discloses a method for the manufacturing of a positive electrode active material for solid-state batteries (Method for Producing Positive Electrode Active Material for Lithium Ion Secondary Battery [0094]-[0140], Fig. 1), wherein the positive electrode active material is the positive electrode active material according to claim 18 (see rejection of claim 18 above), comprising the consecutive steps of preparing a lithium transition metal-based oxide compound (lithium transition metal composite oxide synthesizing process S3 [0098]), mixing said lithium transition metal-based oxide compound with a source of Zr, thereby obtaining a mixture (particles of the lithium transition metal composite oxide obtained in the lithium transition metal composite oxide synthesizing process S 3 are mixed with a liquid coating agent containing a lithium compound and a zirconium compound [0099], [0119]-[0126]), and heating the mixture in an oxidizing atmosphere in a furnace at a temperature between 350° C. and less than 500° C., for a time between 1 hour and 20 hours so as to obtain the positive electrode active material (heat-treated at a temperature of 300° C. or more and 600° C. or less, and for 1 to 5 hours [0099], [0127]-[0141]; It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have selected the overlapping portion of the ranges disclosed by the reference because selection of overlapping portion of ranges has been held to be a prima facie case of obviousness. In re Malagari , 182 USPQ 549.). Regarding claim 29, modified Fujimoto discloses all of the claim limitations as set forth above. Fujimoto further discloses the method comprises a further step, before heating said mixture, of drying said mixture (dried [0099], [0133]-[0134]). Regarding claim 3 1 , modified Fujimoto discloses all of the claim limitations as set forth above. Fujimoto further discloses a solid-state battery comprising the positive electrode active material according to claim 18 (all-solid-state lithium ion secondary battery [0160]-[0161]; see rejection of claim 18 above). Regarding claim 3 2 , modified Fujimoto discloses all of the claim limitations as set forth above. Fujimoto further discloses said solid-state battery comprises a sulfide based solid electrolyte comprising Li, P, and S (sulfide-based solid electrolyte [0157]). Regarding claim 3 3 , modified Fujimoto discloses all of the claim limitations as set forth above. Fujimoto further discloses an electric vehicle or a hybrid electric vehicle comprising the battery according to claim 32 (electric vehicle [0163]; see rejection of claim 32 above). Claim(s) 27 is/are rejected under 35 U.S.C. 103 as being unpatentable over Fujimoto ( JP2021197209A, refer to English equivalent US 2023/0187628A1) in view of JP2004311408A, refer to English machine translation by EPO, as applied to claims 18-26, 28-29, 31-33 above, and further in view of Son g et al. (US 2017/0133672A1). Regarding claim 27, modified Fujimoto discloses all of the claim limitations as set forth above. However, modified Fujimoto does not further disclose the Zr thickness is at least 10 nm, as determined by TEM-EDS measurement. Song discloses a positive electrode active material including a zirconium-containing coating layer (see Title, Abstract), wherein the coating layer has a thickness in the range of 1 nm to 20 nm ([0037]). An obviousness determination is not the result of a rigid formula disassociated from the consideration of the facts of a case. Indeed, the common sense of those skilled in the art demonstrates why some combinations would have been obvious where others would not. Leapfrog Enterprises Inc. v. Fisher-Price Inc ., 82 USPQ2d 1687 (Fed. Cir. 2007); see also KSR v. Teleflex , 82 USPQ2d 1385, 127 S. Ct. 1727 (2007). The claim would have been obvious because a particular known technique was recognized as part of the ordinary capabilities of one skilled in the art. The claim would have been obvious because “a person of ordinary skill has good reason to pursue the known options within his or her technical grasp. If the leads to the anticipated success, it is likely the product not of innovation but of ordinary skill and common sense.” It has been held that choosing from a finite number of identified, predictable solutions, with a reasonable expectation of success is generally within the skill of the art. Claim(s) 30 is/are rejected under 35 U.S.C. 103 as being unpatentable over Fujimoto ( JP2021197209A , refer to English equivalent US 2023/0187628A1) in view of JP2004311408A, refer to English machine translation by EPO , as applied to claims 18-2 6, 28-29 , 3 1- 3 3 above, and further in view of Wu et al. (CN110957474A, refer to English equivalent US2021/0111405A1). Regarding claim 30, Fujimoto discloses all of the claim limitations as set forth above. Fujimoto further discloses the method comprises a further step, before heating said mixture, of drying said mixture (dried [0099], [0133]-[0134]), but does not disclose by means of vacuum heating. Wu discloses a positive active material including an inner core and a coating layer, and preparation method thereof (Title, Abstract), wherein the method for preparing a positive active material includes a step of vacuum drying the inner core of the positive active material prior to secondary sintering with a surface coating-forming compound to form a coating layer of the positive active material ([0009]). An obviousness determination is not the result of a rigid formula disassociated from the consideration of the facts of a case. Indeed, the common sense of those skilled in the art demonstrates why some combinations would have been obvious where others would not. Leapfrog Enterprises Inc. v. Fisher-Price Inc ., 82 USPQ2d 1687 (Fed. Cir. 2007); see also KSR v. Teleflex , 82 USPQ2d 1385, 127 S. Ct. 1727 (2007). The claim would have been obvious because a particular known technique was recognized as part of the ordinary capabilities of one skilled in the art. The claim would have been obvious because “a person of ordinary skill has good reason to pursue the known options within his or her technical grasp. If the leads to the anticipated success, it is likely the product not of innovation but of ordinary skill and common sense.” It has been held that choosing from a finite number of identified, predictable solutions, with a reasonable expectation of success is generally within the skill of the art. Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg , 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman , 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi , 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum , 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel , 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington , 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA. A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA/25, or PTO/AIA/26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 18- 26, 28- 3 3 are provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims 18-3 4 of copending Application No. 18/277, 543 (reference application). Although the claims at issue are not identical, they are not patentably distinct from each other because: Regarding instant claim 18, claim 18 of the reference application discloses the positive electrode active material recited in claim 18 of the instant application with the exception of the claimed Ni content range and primary particle average diameter range. Claim 18 of the reference application discloses a Ni content range that overlaps with instant claim 18 and a primary particle average diameter range that overlaps with instant claim 18. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have selected the overlapping portion of the ranges disclosed by the reference because selection of overlapping portion of ranges has been held to be a prima facie case of obviousness. In re Malagari , 182 USPQ 549. Regarding instant claims 19-20 , claims 20 -21 of the reference application discloses the claimed ratio Zr B /Zr A . Regarding instant claim 2 1 , claim 2 2 of the reference application discloses x≥ 77 mol% which overlaps with the claimed range. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have selected the overlapping portion of the ranges disclosed by the reference because selection of overlapping portion of ranges has been held to be a prima facie case of obviousness. In re Malagari , 182 USPQ 549. Regarding instant claim 2 2 , claim 2 3 of the reference application discloses x≤ 91 mol% which overlaps with the claimed range. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have selected the overlapping portion of the ranges disclosed by the reference because selection of overlapping portion of ranges has been held to be a prima facie case of obviousness. In re Malagari , 182 USPQ 549. Regarding instant claim 2 3 , claim 2 4 of the reference application discloses the claimed y content. Regarding instant claim 2 4 , claim 2 5 of the reference application discloses the claimed b range. Regarding instant claim 2 5 , claim 2 6 of the reference application discloses the claimed secondary particle median size. Regarding instant claim 2 6 , claim 2 7 of the reference application discloses a n overlapping carbon content range. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have selected the overlapping portion of the ranges disclosed by the reference because selection of overlapping portion of ranges has been held to be a prima facie case of obviousness. In re Malagari , 182 USPQ 549. Regarding instant claims 28-3 0 directed to a method, claims 2 8 -3 1 of the reference application discloses the claimed method. Regarding instant claims 3 1 -3 3 directed to a solid-state battery, and electric vehicle or hybrid vehicle, claims 3 2 -3 4 of the reference application discloses a solid-state battery, and electric vehicle or hybrid vehicle. This is a provisional nonstatutory double patenting rejection because the patentably indistinct claims have not in fact been patented. Claim 27 is provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claim 18-34 of copending Application No. 18/277,543 , as applied to claims 18-26, 28-34 above, in view of Son g et al. (US 2017/0133672A1) . Regarding claim 27, claim 18-34 of the copending application discloses all of the claim limitations as set forth above. However, claim 18-34 of the copending application does not further disclose the Zr thickness is at least 10 nm, as determined by TEM-EDS measurement. Song discloses a positive electrode active material including a zirconium-containing coating layer (see Title, Abstract), wherein the coating layer has a thickness in the range of 1 nm to 20 nm ([0037]). An obviousness determination is not the result of a rigid formula disassociated from the consideration of the facts of a case. Indeed, the common sense of those skilled in the art demonstrates why some combinations would have been obvious where others would not. Leapfrog Enterprises Inc. v. Fisher-Price Inc ., 82 USPQ2d 1687 (Fed. Cir. 2007); see also KSR v. Teleflex , 82 USPQ2d 1385, 127 S. Ct. 1727 (2007). The claim would have been obvious because a particular known technique was recognized as part of the ordinary capabilities of one skilled in the art. The claim would have been obvious because “a person of ordinary skill has good reason to pursue the known options within his or her technical grasp. If the leads to the anticipated success, it is likely the product not of innovation but of ordinary skill and common sense.” It has been held that choosing from a finite number of identified, predictable solutions, with a reasonable expectation of success is generally within the skill of the art. This is a provisional nonstatutory double patenting rejection. Claims 18-3 3 are provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims 18-34 of copending Application No. 18/277,484 (reference application). Although the claims at issue are not identical, they are not patentably distinct from each other because: Regarding instant claim 18, claim 18 of the reference application discloses the positive electrode active material recited in claim 18 of the instant application with the exception of the claimed Ni content range. Claim 18 of the reference application discloses a Ni content range that overlaps with instant claim 18. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have selected the overlapping portion of the ranges disclosed by the reference because selection of overlapping portion of ranges has been held to be a prima facie case of obviousness. In re Malagari , 182 USPQ 549. Regarding instant claim s 19 -27 , claim s 19-27 of the reference application discloses the claimed ratio Zr B /Zr A , x, y, b, secondary particle median size, carbon content and Zr thickness. Regarding instant claims 28-3 0 directed to a method, claims 27-31 of the reference application discloses the claimed method. Regarding instant claims 3 1 -3 3 directed to a solid-state battery, and electric vehicle or hybrid vehicle, claims 3 2 -3 4 of the reference application discloses a solid-state battery, and electric vehicle or hybrid vehicle. This is a provisional nonstatutory double patenting rejection because the patentably indistinct claims have not in fact been patented. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to FILLIN "Examiner name" \* MERGEFORMAT JAMES LEE whose telephone number is FILLIN "Phone number" \* MERGEFORMAT (571)270-7937 . The examiner can normally be reached FILLIN "Work Schedule?" \* MERGEFORMAT M-F: 9AM - 5PM . Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, FILLIN "SPE Name?" \* MERGEFORMAT NICOLE BUIE-HATCHER can be reached at FILLIN "SPE Phone?" \* MERGEFORMAT (571)270-3879 . The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /James Lee/ Primary Examiner, Art Unit 1725 2/25/2026
Read full office action

Prosecution Timeline

Aug 16, 2023
Application Filed
Mar 04, 2026
Non-Final Rejection — §103, §112, §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12597632
Electrode Assembly Having External Shape Fixation Frame and Lithium Secondary Battery Including the Same
2y 5m to grant Granted Apr 07, 2026
Patent 12592405
CONNECTIONS FOR REDOX BATTERY INTEGRATION
2y 5m to grant Granted Mar 31, 2026
Patent 12586817
POLYSULFIDE-POLYOXIDE ELECTROLYTE MEMBRANE FOR ENERGY STORAGE DEVICE
2y 5m to grant Granted Mar 24, 2026
Patent 12580228
Electrochemical Devices Comprising Compressed Gas Solvent Electrolytes
2y 5m to grant Granted Mar 17, 2026
Patent 12580178
POSITIVE ELECTRODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME
2y 5m to grant Granted Mar 17, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

1-2
Expected OA Rounds
75%
Grant Probability
94%
With Interview (+19.0%)
3y 3m
Median Time to Grant
Low
PTA Risk
Based on 709 resolved cases by this examiner. Grant probability derived from career allow rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month