Prosecution Insights
Last updated: April 19, 2026
Application No. 17/909,243

LIGHT-EMITTING PARTICLES

Final Rejection §DP
Filed
Sep 02, 2022
Examiner
RILEY, JEZIA
Art Unit
1681
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Sumitomo Chemical Co., Ltd.
OA Round
2 (Final)
83%
Grant Probability
Favorable
3-4
OA Rounds
2y 8m
To Grant
90%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allow Rate
1080 granted / 1299 resolved
+23.1% vs TC avg
Moderate +7% lift
Without
With
+6.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
21 currently pending
Career history
1320
Total Applications
across all art units

Statute-Specific Performance

§101
1.2%
-38.8% vs TC avg
§103
24.3%
-15.7% vs TC avg
§102
27.6%
-12.4% vs TC avg
§112
22.0%
-18.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1299 resolved cases

Office Action

§DP
4DETAILED 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 Remarks Applicants' arguments, filed on 12/31/2025, have been approved and entered. They have been fully considered. Rejections and/or objections not reiterated from previous office actions are hereby withdrawn. The following rejections and/or objections are either newly applied or reiterated. They constitute the complete set presently being applied to the instant application. 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 1, 3-4,8-18 are provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-11 of copending Application No. 17909251 (reference application). Although the claims at issue are not identical, they are not patentably distinct from each other because they both claim a light-emitting particle of similar structure, a powder, a dispersion of comprising same, a method of forming said light-emitting particle, and a method of marking a biomolecule comprising binding the biomolecule to said light-emitting particle. This is a provisional nonstatutory double patenting rejection because the patentably indistinct claims have not in fact been patented. Applicant respectfully requested that this rejection be held in abeyance until the acknowledgement of the allowability of the claims in this Application. Therefore, the rejection is maintained. THIS ACTION IS MADE FINAL. 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 JEZIA RILEY whose telephone number is (571)272-0786. The examiner can normally be reached 7:30-6:00pm. 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, Gary Benzion can be reached at 571-272-0782. 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. /JEZIA RILEY/Primary Examiner, Art Unit 1681 6 February 2026
Read full office action

Prosecution Timeline

Sep 02, 2022
Application Filed
Sep 29, 2025
Non-Final Rejection — §DP
Dec 31, 2025
Response Filed
Feb 07, 2026
Final Rejection — §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12601734
METHODS AND USES OF ENZYMATIC LABELING OF ADP-RIBOSE CONTAINING MOLECULES
2y 5m to grant Granted Apr 14, 2026
Patent 12577607
HIGH INTENSITY LABELED REACTANT COMPOSITIONS AND METHODS FOR SEQUENCING
2y 5m to grant Granted Mar 17, 2026
Patent 12571031
NUCLEIC ACID MODIFYING REAGENTS AND USES THEREOF
2y 5m to grant Granted Mar 10, 2026
Patent 12571033
PURIFYING AND POLYMERIZING 3'-BLOCKED NUCLEOTIDES
2y 5m to grant Granted Mar 10, 2026
Patent 12565677
SINGLE-CHANNEL SEQUENCING METHOD BASED ON SELF-LUMINESCENCE
2y 5m to grant Granted Mar 03, 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

3-4
Expected OA Rounds
83%
Grant Probability
90%
With Interview (+6.9%)
2y 8m
Median Time to Grant
Moderate
PTA Risk
Based on 1299 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