Prosecution Insights
Last updated: October 01, 2026
Application No. 18/867,286

SURFACE-MODIFIED NANODIAMOND

Non-Final OA §101§103§112§DP
Filed
Nov 19, 2024
Priority
May 20, 2022 — JP 2022-083332 +1 more
Examiner
AL-AWADI, DANAH J
Art Unit
1615
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Daicel Corporation
OA Round
1 (Non-Final)
54%
Grant Probability
Moderate
1-2
OA Rounds
1y 4m
Est. Remaining
68%
With Interview

Examiner Intelligence

Grants 54% of resolved cases
54%
Career Allowance Rate
443 granted / 817 resolved
-5.8% vs TC avg
Moderate +13% lift
Without
With
+13.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
32 currently pending
Career history
846
Total Applications
across all art units

Statute-Specific Performance

§101
3.1%
-36.9% vs TC avg
§103
47.2%
+7.2% vs TC avg
§102
13.0%
-27.0% vs TC avg
§112
21.2%
-18.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 817 resolved cases

Office Action

§101 §103 §112 §DP
DETAILED ACTION 1. The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . INFORMATION DISCLOSURE STATEMENT 2. Information Disclosure Statements filed 2/19/2025 and 7/19/2026. Claim Rejections - 35 USC §101/§112 3. 35 U.S.C. 101 reads as follows: Whoever invents or discovers any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof, may obtain a patent therefor, subject to the conditions and requirements of this title. 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. Claim 9 is 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 pre-AIA the applicant regards as the invention. Claim 9 recites a composition for use in boron neutron capture therapy, the composition comprising the surface-modified nanodiamond described in claim 1. Since the claims do not set forth any steps involved in the method/process, it is unclear what method/process Applicant is intending to encompass. A claim is indefinite where it merely recites a use without any active, positive steps delimiting how this use is actually practiced. Claims 9 is rejected under 35 U.S.C. 101 because the claimed recitation of a use, without setting forth any steps involved in the process, results in an improper definition of a process, i.e., results in a claim which is not a proper process claim under 35 U.S.C. 101. See for example Ex parte Dunki, 153 USPQ 678 (Bd. App. 1967) and Clinical Products, Ltd. v. Brenner, 255 F. Supp. 131, 149 USPQ 475 (D.D.C. 1966). Claim Rejections - 35 USC § 103 4. 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. 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. Claims 1-9 are rejected under 35 U.S.C. 103 as being unpatentable over Nishikawa et al. Conjugation of Phenylboronic Acid Moiety through Multistep Organic Transformations on Nanodiamond Surface for Anticancer Nanodrug for Boron Neutron Capture Therapy” in view of Sumitani et al. “Boron neutron capture therapy assisted by boron-conjugated nanoparticles” and JP2015147733A. Nishikawa et al. Conjugation of Phenylboronic Acid Moiety through Multistep Organic Transformations on Nanodiamond Surface for Anticancer Nanodrug for Boron Neutron Capture Therapy” (hereinafter Nishikawa et al.) disclose nanodiamond particle-polyglycerol-phenylboronic acid SucMe-10B is useful for boron neutron capture therapy (abstract, fig 7). The reference does not describe boron blusters or that the group has the ability to recognize cancer cells. Sumitani et al. “Boron neutron capture therapy assisted by boron-conjugated nanoparticles”, (hereinafter Sumitani et al.) disclose boron clusters on nanoparticles are used for boron neutron capture therapy in the same manner as PBA, which is a compound having a phenylboronic acid group (p. 522, introduction). Therefore, it would have been prima facie obvious to one of ordinary skill in the art before the effective filing date to use boron clusters as a substitute for phenylboronic acid group. JP2015147733A demonstrates a cancer cell targeting peptide is bonded to a nanodiamond particle via polyglycerol (abstract, page 6 and claims 1-6). It would have been prima facie obvious to one of ordinary skill in the art before the effective filing date of the instant invention to have the nanodiamond be modified with a targeting peptide to treat cancer. One would have been motivated to do so to improve the delivery of the nanodiamond particles to cancer cells. DOUBLE PATENTING 5. 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 1-9 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims of 18566888. Although the claims at issue are not identical, they are not patentably distinct from each other because both are drawn to nanodiamond particles the differences being that there is a surface modifying group capable of targeting cancer cells in the instant application. JP2015147733A demonstrates a cancer cell targeting peptide is bonded to a nanodiamond particle via polyglycerol (abstract, page 6 and claims 1-6). It would have been prima facie obvious to one of ordinary skill in the art before the effective filing date of the instant invention to have the nanodiamond be modified with a targeting peptide to treat cancer. One would have been motivated to do so to improve the delivery of the nanodiamond particles to cancer cells. CORRESPONDENCE 6. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Danah Al-awadi whose telephone number is (571) 270-7668. The examiner can normally be reached on 9:00 am - 6:00 pm; M-F (EST). If attempts to reach the examiner by telephone are unsuccessful, the examiner's supervisor, Robert A. Wax can be reached on (571) 272-0623. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /Danah Al-Awadi/ Primary Examiner, Art Unit 1615
Read full office action

Prosecution Timeline

Nov 19, 2024
Application Filed
Aug 12, 2026
Non-Final Rejection mailed — §101, §103, §112 (current)

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Prosecution Projections

1-2
Expected OA Rounds
54%
Grant Probability
68%
With Interview (+13.4%)
3y 2m (~1y 4m remaining)
Median Time to Grant
Low
PTA Risk
Based on 817 resolved cases by this examiner. Grant probability derived from career allowance rate.

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