Prosecution Insights
Last updated: April 19, 2026
Application No. 17/869,657

POLYMER BLOCKER FOR SOLID-STATE BATTERY

Final Rejection §103
Filed
Jul 20, 2022
Examiner
MARROQUIN, DOUGLAS C
Art Unit
1723
Tech Center
1700 — Chemical & Materials Engineering
Assignee
GM Global Technology Operations LLC
OA Round
2 (Final)
46%
Grant Probability
Moderate
3-4
OA Rounds
3y 11m
To Grant
99%
With Interview

Examiner Intelligence

Grants 46% of resolved cases
46%
Career Allow Rate
5 granted / 11 resolved
-19.5% vs TC avg
Strong +71% interview lift
Without
With
+71.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 11m
Avg Prosecution
50 currently pending
Career history
61
Total Applications
across all art units

Statute-Specific Performance

§103
55.4%
+15.4% vs TC avg
§102
16.3%
-23.7% vs TC avg
§112
22.8%
-17.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 11 resolved cases

Office Action

§103
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 . Response to Amendment 1. Applicant’s amendments with respect to claims filed on 12/19/2025 have been entered. Claims 1-13 and 18-21 remain pending in this application and are currently under consideration for patentability under 37 CFR 1.104. Claims 18-20 have been withdrawn from consideration. Claim 14 has been cancelled. Claim Rejections - 35 USC § 103 2. In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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. 3. Claim(s) 1-6, 8-13, 15, and 17 is/are rejected under 35 U.S.C. 103 as being unpatentable over Shimamura et al. (Pub. No. US 20090233164 A1) in view of Yoneguchi et al. (Pub. No. US 20210376423 A1) in view of Hamasaki et al. (Pub. No. US 20230282933 A1). Regarding claim 1, Shimamura teaches a polymer blocker (4b, Fig. 10(B), see [0062], the examiner would like to note Fig. 10 will be referenced for illustrative purposes as it is the most clear depiction, however as seen in [0019] Fig. 10 shows the heat pressing process and the outcome is used in a battery or in other Figs, and Fig. 3 and Fig. 5 are the same embodiment) for use in an electrochemical battery that cycles lithium ions (11, Fig. 3, see [0019] result of Fig. 10 including polymer blocker are used in a bipolar battery, see [0038] 11 is a bipolar lithium ion secondary battery with movement of ions), the polymer blocker (4b, Fig. 10(B), see [0062]) comprising: a polymeric layer (4a, Fig. 5(E), see [0040], the examiner would like to note 4a in the figures refers to the polymeric layer itself, while 4b.sub.2 refers to the separator which has been impregnated by the adhesive, see [0043]); a first adhesive layer (4b.sub.1’, A. Fig. 10, see [0043]) comprising a first adhesive (seal resin, see [0040]) and disposed on or near a first surface (first surface, A. Fig. 10, see 4b.sub.1’ on the first surface) of the polymeric layer (4a, Fig. 5(E), see [0040]), a portion of the first adhesive (seal resin, see [0040]) impregnating a first portion (4b.sub.2, Fig. 10(A), see [0043] see seal resin impregnating inside the separator) of the polymeric layer (4a, Fig. 5(E), see [0040]); and a second adhesive layer (4b.sub.1”, A. Fig. 10, see [0043]) comprising a second adhesive (seal resin, see [0040], the first and second adhesive are the same adhesive) and disposed on or near a second surface (second surface, A. Fig. 10, see 4b.sub.1” on the second surface) of the polymeric layer (4a, Fig. 5(E), see [0040]), the second surface (second surface, A. Fig. 10) of the polymeric layer (4a, Fig. 5(E), see [0040]) being parallel with the first surface (first surface, A. Fig. 10, see first and second surface parallel to each other) of the polymeric layer (4a, Fig. 5(E), see [0040]), a portion of the second adhesive (seal resin, see [0040]) impregnating a second portion (4b.sub.2, Fig. 10(A), see [0043] see seal resin impregnating inside the separator, both first and second portions are the same portion) of the polymeric layer (4a, Fig. 5(E), see [0040]), the first (4b.sub.2, Fig. 10(A), see [0043]) and second portions (4b.sub.2, Fig. 10(A), see [0043]) of the polymeric layer (4a, Fig. 5(E), see [0040]) being the same (the first and second portions are both 4b.sub.2) or different, but Shimamura fails to teach wherein the polymeric layer comprises a material selected from the group consisting of: cellulose separator, polyvinylidene fluoride (PVDF) membrane, ceramic-coating separator, oxide particle layers, and combination thereof and having a porosity greater than or equal to about 50 vol. % to less than or equal to about 95 vol. %. PNG media_image1.png 762 710 media_image1.png Greyscale However, Yoneguchi teaches a polymeric layer (nonaqueous electrolyte secondary battery laminated separator, see [0067]) comprising a material (resin, see [0067]) selected from the group consisting of: cellulose separator, polyvinylidene fluoride (PVDF) membrane (polyvinylidene fluoride (PVDF), see [0082] where the fluorine-containing resin is PVDF, see [0078] where the resin is a fluorine-containing resin), ceramic-coating separator, oxide particle layers, and combination thereof, and wherein the material (resin, see [0067]) is a first material (resin, see [0067] where there are multiple materials in the separator) and the polymeric layer (nonaqueous electrolyte secondary battery laminated separator, see [0067]) further comprises a second material (polyolefin-based resin, see [0030], see [0067] the laminated separator includes the nonaqueous electrolyte secondary battery separator) selected from the group consisting of: polyester nonwoven separator, polyimide membrane, polyolefin-based separator (polyolefin-based resin, see [0030]), high-temperature stable separator, and combinations thereof. It would have been obvious for one of ordinary skill in the art before the effective filing date of the invention to modify Shimamura to substitute the materials of 4a as taught by Shimamura for the materials formed using PVDF and polyolefin-based resin as taught by Yoneguchi as an art effective equivalent separator material to achieve high mechanical strength and high ion permeability (see [0011] of Yoneguchi). Further Shimamura teaches that modifications can be made (see [0184] of Shimamura), and Shimamura further teaches wherein 4a can be a micro-porous membrane separator (see [0096]) made of a polymer (see [0097]). Shimamura in view of Yoneguchi fails to teach wherein the polymeric layer having a porosity greater than or equal to about 50 vol. % to less than or equal to about 95 vol. %. However, Hamasaki teaches wherein the polymeric layer (separator, see [0137]) having a porosity greater than or equal to about 50 vol. % to less than or equal to about 95 vol. % (35% to 70%, see [0137], further see [0246] where the porosity is a vol%). It would have been obvious for one of ordinary skill in the art before the effective filing date of the invention to modify Shimamura in view of Yoneguchi such that 4a is formed to have a porosity of 35% to 70% as taught by Hamasaki to achieve high strength, high safety, an high dimensional stability at high temperatures (see [0023] of Hamasaki), and it would have further been obvious to modify the range to stay within the claimed range of at least 50% to 70% as Hamasaki teaches porosity is a result effective variable of suppressing clogging, controlling air permeability, and strength retention (see [0137] of Hamasaki). Further Shimamura in view of Yoneguchi teaches that modifications can be made (see [0184] of Shimamura). Regarding claim 2, Shimamura in view of Yoneguchi and further in view of Hamasaki teaches wherein the first (seal resin, see [0040]) and second adhesives (seal resin, see [0040]) together fill greater than or equal to about 80% to less than or equal to about 100% (100%, see [0043] the separator is impregnated so the seal member passes through the separator, therefore it is the examiner’s position this is complete filling of porosity of the separator) of a total porosity (see [0106], total porosity) of the polymeric layer (4a, Fig. 5(E), see [0040]). Regarding claim 3, Shimamura in view of Yoneguchi and further in view of Hamasaki fails to teach wherein the polymer blocker has an average thickness greater than or equal to about 2 micrometers to less than or equal to about 400 micrometers. However, Shimamura further teaches wherein the polymer blocker (4b, Fig. 10(B), see [0062]) has an average thickness greater than about 25 micrometers to less than or equal to about 1010 micrometers (see [0107] thickness of the separator is 5 to 10 micrometers, see [0050] thickness of seal part on each side of the separator is thicker than the thickness of the electrode, however as shown in Fig. 10(A) to 10(B) when fusion heating and pressing is performed, 4b.sub.1’ and 4b.sub.1” compress to approximately the same size as the positive and negative electrode, see [0137] thickness of positive electrode layer is 10 to 500 micrometers, therefore 4b.sub.1’ and 4b.sub.1” is about 10 to 500 micrometers, therefore the thickness of 4b is 25 to 1010 micrometers) which overlaps the claimed range in at least the range of 25 to 400 micrometers. It would have been obvious for one of ordinary skill in the art before the effective filing date of the invention to modify Shimamura in view of Yoneguchi and further in view of Hamasaki such that the thickness of the polymer blocker stays within the claimed range as a prima facie case of obviousness exists “in the case where the claimed ranges overlap or lie inside ranges disclosed by the prior art” (MPEP 2144.05.I), and thickness of the resin sealing layers above and below the separator are result effective variable for thickness of an electrode (see [0050] of Shimamura). Further Shimamura in view of Yoneguchi and further in view of Hamasaki teaches that modifications can be made (see [0184] of Shimamura, technological scope is not limited). Regarding claim 4, Shimamura in view of Yoneguchi and further in view of Hamasaki teaches wherein the polymeric layer (4a, Fig. 5(E), see [0040]) has an average thickness greater than or equal to about 2 micrometers to less than or equal to about 100 micrometers (5 to 10 micrometers, see [0107]). Regarding claim 5, Shimamura in view of Yoneguchi and further in view of Hamasaki teaches wherein the material (resin, see [0067] of Yoneguchi, see modification above) is a first material (resin, see [0067] where there are multiple materials in the separator see Yoneguchi, see modifications above) and the polymeric layer (4a, Fig. 5(E), see [0040]) further comprises a second material (polyolefin-based resin, see [0030], see [0067] the laminated separator includes the nonaqueous electrolyte secondary battery separator, see Yoneguchi, see modifications above) selected from the group consisting of: polyester nonwoven separator, polyimide membrane, polyolefin-based separator (polyolefin-based resin, see [0030]), high-temperature stable separator, and combinations thereof. Regarding claim 6, Shimamura in view of Yoneguchi and further in view of Hamasaki teaches wherein at least one of the first (seal resin, see [0040]) and second adhesives (seal resin, see [0040]) comprises a hot-melt adhesive (heat fusion resin, see [0046], further see [0019] and Fig. 10 is the process of sealing by heat fusion). Regarding claim 8, Shimamura in view of Yoneguchi and further in view of Hamasaki fails to teach wherein the first and second adhesives are independently selected from the group consisting of: polyethylene resin, polypropylene resin, polybutylene resin, urethane resin, polyamide resin, ethylene, propylene, butene, silicon, polyimide resin, epoxy resin, acrylic resin, ethylene-propylenediene rubber (EPDM), isocyanate adhesive, acrylic resin adhesive, cyanoacrylate adhesive, and combinations thereof. However, Shimamura further teaches that the first (seal resin, see [0040]) and second adhesives (seal resin, see [0040]) are polyethylene resin (polyethylene, see [0057]), polypropylene resin (polypropylene, see [0057]), urethane resin (polyurethane, see [0057]), and epoxy resin (silicone epoxy, see [0057]). It would have been obvious for one of ordinary skill in the art before the effective filing date of the invention to modify Shimamura in view of Yoneguchi and further in view of Hamasaki such that the seal resin is polyethylene resin, polypropylene resin, polyurethane resin, or silicon epoxy as Shimamura teaches it is known in the art to do so. Further Shimamura in view of Yoneguchi and further in view of Hamasaki teaches that modifications can be made (see [0184] of Shimamura, technological scope is not limited). Regarding claim 9, Shimamura teaches an electrochemical cell (11, Fig. 3, see [0036]) that cycles lithium ions (see [0038] the bipolar battery is a lithium ion secondary battery where charge-discharge is mediated by movement of lithium ions), the electrochemical cell (11, Fig. 3, see [0036]) comprising: a first current collector (First Collector, A. Fig. 10(B), see [0062], the examiner would like to note, Fig. 10 is being used for illustrative purposes, and for the embodiment including a heat fusion resin, however Fig. 10 is the same embodiment of Fig. 1-5, see [0019] that shows Fig. 10 is showing the heat sealing process); a second current collector (second collector, A. Fig. 10(B), see [0062]) parallel with the first current collector (First Collector, A. Fig. 10(B), see [0062], see the current collectors parallel to each other); a first polymer blocker (left side 4b, Fig. 10(B), see [0062]) connecting a first side (first side of first, A. Fig. 10(B)) of the first current collector (First Collector, A. Fig. 10(B), see [0062]) to a first side (first side of second, A. Fig. 10(B)) of the second current collector (second collector, A. Fig. 10(B), see [0062]); and a second polymer blocker (right side 4b, Fig. 10(B), see [0062]) connecting a second side (second side of first, A. Fig. 10(B)) of the first current collector (First Collector, A. Fig. 10(B), see [0062]) and a second side (second side of second, A. Fig. 10(B)) of the second current collector (second collector, A. Fig. 10(B), see [0062]) to form a sealed area (area inside first and second collector, and left and right side 4b) defined by the first current collector (First Collector, A. Fig. 10(B), see [0062]), the second current collector (second collector, A. Fig. 10(B), see [0062]), the first polymer blocker (left side 4b, Fig. 10(B), see [0062]), and the second polymer blocker (right side 4b, Fig. 10(B), see [0062]), the first (left side 4b, Fig. 10(B), see [0062]) and second polymer blockers (right side 4b, Fig. 10(B), see [0062]) comprising: a polymeric layer (4a, Fig. 5(E), see [0040], the examiner would like to note 4a in the figures refers to the polymeric layer itself, while 4b.sub.2 refers to the separator which has been impregnated by the adhesive, see [0043]), a first adhesive layer (4b.sub.1’, A. Fig. 10(A), see [0043]) comprising a first adhesive (seal resin, see [0040]) and disposed on or near a first surface (first surface, A. Fig. 10, see 4b.sub.1’ on the first surface) of the polymeric layer (4a, Fig. 5(E), see [0040]), a portion of the first adhesive (seal resin, see [0040]) impregnating a first portion (4b.sub.2, Fig. 10(A), see [0043] see seal resin impregnating inside the separator) of the polymeric layer (4a, Fig. 5(E), see [0040]); and a second adhesive layer (4b.sub.1”, A. Fig. 10, see [0043]) comprising a second adhesive (seal resin, see [0040], the first and second adhesive are the same adhesive) and disposed on or near a second surface (second surface, A. Fig. 10, see 4b.sub.1” on the second surface) of the polymeric layer (4a, Fig. 5(E), see [0040]), the second surface (second surface, A. Fig. 10) of the polymeric layer (4a, Fig. 5(E), see [0040]) being parallel with the first surface (first surface, A. Fig. 10, see first and second surface parallel to each other) of the polymeric layer (4a, Fig. 5(E), see [0040]), a portion of the second adhesive (seal resin, see [0040]) impregnating a second portion (4b.sub.2, Fig. 10(A), see [0043] see seal resin impregnating inside the separator, both first and second portions are the same portion) of the polymeric layer (4a, Fig. 5(E), see [0040]), the first (4b.sub.2, Fig. 10(A), see [0043]) and second portions (4b.sub.2, Fig. 10(A), see [0043]) of the polymeric layer (4a, Fig. 5(E), see [0040]) being the same (the first and second portions are both 4b.sub.2) or different, but Shimamura fails to teach wherein the polymeric layer comprises a material selected from the group consisting of: cellulose separator, polyvinylidene fluoride (PVDF) membrane, ceramic-coating separator, oxide particle layers, and combination thereof and having a porosity greater than or equal to about 50 vol. % to less than or equal to about 95 vol. %. However, Yoneguchi teaches a polymeric layer (nonaqueous electrolyte secondary battery laminated separator, see [0067]) comprising a material (resin, see [0067]) selected from the group consisting of: cellulose separator, polyvinylidene fluoride (PVDF) membrane (polyvinylidene fluoride (PVDF), see [0082] where the fluorine-containing resin is PVDF, see [0078] where the resin is a fluorine-containing resin), ceramic-coating separator, oxide particle layers, and combination thereof, and wherein the material (resin, see [0067]) is a first material (resin, see [0067] where there are multiple materials in the separator) and the polymeric layer (nonaqueous electrolyte secondary battery laminated separator, see [0067]) further comprises a second material (polyolefin-based resin, see [0030], see [0067] the laminated separator includes the nonaqueous electrolyte secondary battery separator) selected from the group consisting of: polyester nonwoven separator, polyimide membrane, polyolefin-based separator (polyolefin-based resin, see [0030]), high-temperature stable separator, and combinations thereof. It would have been obvious for one of ordinary skill in the art before the effective filing date of the invention to modify Shimamura to substitute the materials of 4a as taught by Shimamura for the materials formed using PVDF and polyolefin-based resin as taught by Yoneguchi as an art effective equivalent separator material to achieve high mechanical strength and high ion permeability (see [0011] of Yoneguchi). Further Shimamura teaches that modifications can be made (see [0184] of Shimamura), and Shimamura further teaches wherein 4a can be a micro-porous membrane separator (see [0096]) made of a polymer (see [0097]). Shimamura in view of Yoneguchi fails to teach wherein the polymeric layer having a porosity greater than or equal to about 50 vol. % to less than or equal to about 95 vol. %. However, Hamasaki teaches wherein the polymeric layer (separator, see [0137]) having a porosity greater than or equal to about 50 vol. % to less than or equal to about 95 vol. % (35% to 70%, see [0137], further see [0246] where the porosity is a vol%). It would have been obvious for one of ordinary skill in the art before the effective filing date of the invention to modify Shimamura in view of Yoneguchi such that 4a is formed to have a porosity of 35% to 70% as taught by Hamasaki to achieve high strength, high safety, an high dimensional stability at high temperatures (see [0023] of Hamasaki), and it would have further been obvious to modify the range to stay within the claimed range of at least 50% to 70% as Hamasaki teaches porosity is a result effective variable of suppressing clogging, controlling air permeability, and strength retention (see [0137] of Hamasaki). Further Shimamura in view of Yoneguchi teaches that modifications can be made (see [0184] of Shimamura). Regarding claim 10, Shimamura in view of Yoneguchi and further in view of Hamasaki teaches wherein the sealed area (area inside first and second collector, and left and right side 4b) comprises: a positive electroactive material layer (2, Fig. 10(B), see [0062], see [0128] the positive electrode contains a positive electrode active material); a negative electroactive material layer (3, Fig. 10(B), see [0062], see [0138] the negative electrode contains a negative electrode active material); and an electrolyte layer (4, Fig. 10(B), see [0062]) disposed between and physically separating the positive electroactive material layer (2, Fig. 10(B), see [0062]) and the negative electroactive material layer (3, Fig. 10(B), see [0062], see in Fig. 10(B) 4 is between 2 and 3). Regarding claim 11, Shimamura in view of Yoneguchi and further in view of Hamasaki teaches wherein the electrolyte layer (4, Fig. 10(B), see [0062]) comprises a polymeric gel electrolyte (see [0061] the electrolyte is a polymer gel electrolyte). Regarding claim 12, Shimamura in view of Yoneguchi and further in view of Hamasaki teaches wherein at least one of the positive electroactive material layer (2, Fig. 10(B), see [0062]) and the negative electroactive material layer (3, Fig. 10(B), see [0062]) comprises a polymeric gel electrolyte (see [0128] the positive electrode layer contains a polymer gel electrolyte, see [0138] the negative electrode layer comprises polymer gel electrolyte). Regarding claim 13, Shimamura in view of Yoneguchi and further in view of Hamasaki teaches wherein the first (seal resin, see [0040]) and second adhesives (seal resin, see [0040]) together fill greater than or equal to about 80% to less than or equal to about 100% (100%, see [0043] the separator is impregnated so the seal member passes through the separator, therefore it is the examiner’s position this is complete filling of porosity of the separator) of a total porosity (see [0106], total porosity) of the polymeric layer (4a, Fig. 5(E), see [0040]). Regarding claim 15, Shimamura in view of Yoneguchi and further in view of Hamasaki teaches wherein at least one of the first (seal resin, see [0040]) and second adhesives (seal resin, see [0040]) comprises a hot-melt adhesive (heat fusion resin, see [0046], further see [0019] and Fig. 10 is the process of sealing by heat fusion). Regarding claim 17, Shimamura in view of Yoneguchi and further in view of Hamasaki fails to teach wherein the first and second adhesives are independently selected from the group consisting of: polyethylene resin, polypropylene resin, polybutylene resin, urethane resin, polyamide resin, ethylene, propylene, butene, silicon, polyimide resin, epoxy resin, acrylic resin, ethylene-propylenediene rubber (EPDM), isocyanate adhesive, acrylic resin adhesive, cyanoacrylate adhesive, and combinations thereof. However, Shimamura further teaches that the first (seal resin, see [0040]) and second adhesives (seal resin, see [0040]) are polyethylene resin (polyethylene, see [0057]), polypropylene resin (polypropylene, see [0057]), urethane resin (polyurethane, see [0057]), and epoxy resin (silicone epoxy, see [0057]). It would have been obvious for one of ordinary skill in the art before the effective filing date of the invention to modify Shimamura in view of Yoneguchi and further in view of Hamasaki to such that the seal resin is polyethylene resin, polypropylene resin, polyurethane resin, or silicon epoxy as Shimamura teaches it is known in the art to do so. Further Shimamura in view of Yoneguchi and further in view of Hamasaki teaches that modifications can be made (see [0184] of Shimamura, technological scope is not limited). 4. Claim(s) 7 and 16 is/are rejected under 35 U.S.C. 103 as being unpatentable over Shimamura et al. (Pub. No. US 20090233164 A1) in view of Yoneguchi et al. (Pub. No. US 20210376423 A1) in view of Hamasaki et al. (Pub. No. US 20230282933 A1) as applied to claims 1 and 10 above, and further in view of Rextac (Rextac, 2016). Regarding claim 7, Shimamura in view of Yoneguchi and further in view of Hamasaki fails to teach wherein at least one of the first and second adhesives comprises an amorphous polypropylene resin prepared by copolymerizing at least two of ethylene, propylene, and butene. However, Rextac teaches an amorphous polypropylene resin (copolymer of propylene and ethylene, see page 10) prepared by copolymerizing at least two of ethylene, propylene (copolymer of propylene and ethylene, see page 10), and butene for use in battery assembly (battery assembly, see page 41). It would have been obvious for one of ordinary skill in the art before the effective filing date of the invention to modify Shimamura in view of Yoneguchi and further in view of Hamasaki such that the seal resin is amorphous polypropylene resin as taught by Rextac as an art effective equivalent thermal fusion adhesive (see page 1 of Rextac, the APAOs are hot melts) for excellent adhesion and hot tack properties (see page 27 of Rextac). Further Shimamura in view of Yoneguchi and further in view of Hamasaki teaches that modifications can be made (see [0184] of Shimamura, technological scope is not limited), and further the resin is preferably a modified polypropylene (see [0057] of Shimamura). Regarding claim 16, Shimamura in view of Yoneguchi and further in view of Hamasaki fails to teach wherein at least one of the first and second adhesives comprises an amorphous polypropylene resin prepared by copolymerizing at least two of ethylene, propylene, and butene. However, Rextac teaches an amorphous polypropylene resin (copolymer of propylene and ethylene, see page 10) prepared by copolymerizing at least two of ethylene, propylene (copolymer of propylene and ethylene, see page 10), and butene for use in battery assembly (battery assembly, see page 41). It would have been obvious for one of ordinary skill in the art before the effective filing date of the invention to modify Shimamura in view of Yoneguchi and further in view of Hamasaki such that the seal resin is amorphous polypropylene resin as taught by Rextac as an art effective equivalent thermal fusion adhesive (see page 1 of Rextac, the APAOs are hot melts) for excellent adhesion and hot tack properties (see page 27 of Rextac). Further Shimamura in view of Yoneguchi and further in view of Hamasaki teaches that modifications can be made (see [0184] of Shimamura, technological scope is not limited), and further the resin is preferably a modified polypropylene (see [0057] of Shimamura). 5. Claim(s) 21 is/are rejected under 35 U.S.C. 103 as being unpatentable over Shimamura et al. (Pub. No. US 20090233164 A1) in view of Yoneguchi et al. (Pub. No. US 20210376423 A1) in view of Hamasaki et al. (Pub. No. US 20230282933 A1) as applied to claims 1 above, and further in view of Kim et al. (Pub. No. US 20230048711 A1). Regarding claim 21, Shimamura in view of Yoneguchi and further in view of Hamasaki fails to teach wherein the first and second adhesives are independently selected from the group consisting of: polybutylene resin, polyamide resin, butene, polyimide resin, acrylic resin, ethylene-propylenediene rubber (EPDM), isocyanate adhesive, acrylic resin adhesive, cyanoacrylate adhesive, and combinations thereof. However, Kim teaches wherein the first (inner layer, see [0036] where the inner layer is thermally bonded, therefore acts as a thermal adhesive) and second adhesives (inner layer, see [0036] where the inner layer is thermally bonded, therefore acts as a thermal adhesive, further the inner layers thermally bond together so they can be the same materials) are independently selected from the group consisting of: polybutylene resin (polybutylene resin, see [0036]), polyamide resin, butene, polyimide resin (polyimide resin, see [0036]), acrylic resin, ethylene-propylenediene rubber (EPDM), isocyanate adhesive, acrylic resin adhesive, cyanoacrylate adhesive, and combinations thereof. It would have been obvious for one of ordinary skill in the art before the effective filing date of the invention to modify Shimamura in view of Yoneguchi and further in view of Hamasaki such that the seal resin is a polybutylene resin or a polyimide resin as taught Kim as an art effective equivalent thermal sealing resin (see [0036] of Kim where the resins are thermally bonded to seal) for the similar purpose of creating a hermetic seal and exhibit excellent thermal bonding strength (see [0036] of Kim) and exhibit excellent chemical resistance (see [0036] of Kim). Further Shimamura in view of Yoneguchi and further in view of Hamasaki teaches that modifications can be made (see [0184] of Shimamura, technological scope is not limited). Response to Arguments Applicant’s arguments with respect to claim(s) 1-13, 15-17, and 21 have been considered but are moot because the new ground of rejection does not rely on the same combination of references applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to DOUGLAS CALEB MARROQUIN whose telephone number is (571)272-0166. The examiner can normally be reached Monday - Friday 7:30-5:00 EST. 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, Tiffany Legette can be reached at 571-270-7078. 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. /DOUGLAS C MARROQUIN/Examiner, Art Unit 1723 /TIFFANY LEGETTE/Supervisory Patent Examiner, Art Unit 1723
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Prosecution Timeline

Jul 20, 2022
Application Filed
Sep 29, 2025
Non-Final Rejection — §103
Nov 25, 2025
Interview Requested
Dec 09, 2025
Applicant Interview (Telephonic)
Dec 09, 2025
Examiner Interview Summary
Dec 19, 2025
Response Filed
Feb 19, 2026
Final Rejection — §103
Apr 14, 2026
Interview Requested

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12548803
CLOSED LOOP PROCESS FOR NEAR ZERO-ENERGY REGENERATION OF ELECTRODES BY RECYCLING SPENT RECHARGEABLE LITHIUM BATTERIES
2y 5m to grant Granted Feb 10, 2026
Patent 12519189
Thermally Disconnecting High Power Busbars For Battery System Propagation Control
2y 5m to grant Granted Jan 06, 2026
Study what changed to get past this examiner. Based on 2 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
46%
Grant Probability
99%
With Interview (+71.4%)
3y 11m
Median Time to Grant
Moderate
PTA Risk
Based on 11 resolved cases by this examiner. Grant probability derived from career allow rate.

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