Prosecution Insights
Last updated: October 02, 2026
Application No. 18/568,756

PERIODATE COMPOSITIONS AND METHODS FOR CHEMICAL CLEAVAGE OF SURFACE-BOUND POLYNUCLEOTIDES

Non-Final OA §112§DOUBLEPATENT
Filed
Dec 08, 2023
Priority
Dec 20, 2021 — provisional 63/291,883 +1 more
Examiner
MARTIN, KEVIN STEPHEN
Art Unit
1681
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Illumina Inc.
OA Round
1 (Non-Final)
77%
Grant Probability
Favorable
1-2
OA Rounds
7m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 77% — above average
77%
Career Allowance Rate
122 granted / 158 resolved
+17.2% vs TC avg
Strong +23% interview lift
Without
With
+23.2%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
59 currently pending
Career history
184
Total Applications
across all art units

Statute-Specific Performance

§101
1.3%
-38.7% vs TC avg
§103
24.3%
-15.7% vs TC avg
§102
16.1%
-23.9% vs TC avg
§112
41.5%
+1.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 158 resolved cases

Office Action

§112 §DOUBLEPATENT
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 . Status of Claims The amendments to the claims filed April 24, 2026 are acknowledged and entered. Claims 1-6, 8, 10, 12-14, 17, 30-31, 33 and 35-39 are pending. Priority This application is a 371 of PCT/US2022/081798, filed December 16, 2022, which claims benefit of 63/291,883, filed December 20, 2021. Information Disclosure Statement Acknowledgement is made of the Information Disclosure Statement filed on March 12, 2024. All references have been considered except where marked with a strikethrough. Specification The specification has not been checked to the extent necessary to determine the presence of all possible minor errors. Applicant’s cooperation is requested in correcting any of the errors of which applicant may become aware of in the specification. Election/Restriction Applicant’s election of Group I drawn to a composition, and kits thereof, in the reply filed on April 24, 2026 is acknowledged. Because applicant did not distinctly and specifically point out the supposed errors in the restriction requirement, the election has been treated as an election without traverse (MPEP § 818.01(a)). Therefore this restriction is considered proper and thus made FINAL. Claim Objections Claim 1 is objected to because of the following informalities: Claim 1, lines 1-2, recites the phrase “for improving chemical linearization rate of double-stranded polynucleotides” which is an intended use of the claimed composition. The intended use does not provide any structural limitation to the claimed composition and therefore has no patentability weight. It is suggested the claim be amended to delete the intended use. Claim Rejections - 35 USC § 112b 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 2-6, 8, 10, 12-14, 17, 31, 33 and 35-38 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. The claims are indefinite for the reasons that follow: Claims 4-6, 8, 10, 17 and 31 recite the phrase “salt comprises” which renders the claims indefinite because the structure of the salt intended by “salt comprises” is unclear. The term "comprising" is open-ended and does not exclude additional, unrecited elements or method steps (see MPEP 2111.03). It is suggested that Applicant amend the claim to replace “comprises” with “is”. For instance, “the periodate salt The term “about” recited in claims 2-3, 6, 8, 10, 12-14, 33 and 35-38 is a relative term which renders the claims indefinite. The term “about” is not defined by the claim, the specification does not provide a standard for ascertaining the requisite degree, and one of ordinary skill in the art would not be reasonably apprised of the scope of the invention. It is suggested the claims be amended to delete the term “about”. 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 1-6, 8, 10, 12-14, 17, 30-31, 33 and 35-39 are provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-3, 5-8, 10-14, 29-31, 33, 35 and 38-39 of copending Application No. 18/568,600 (reference application). Although the claims at issue are not identical, they are not patentably distinct from each other because the instant claims are anticipated by the reference claims. Reference claim 1 recites a composition comprising a periodate salt and an ionic liquid additive, wherein the periodate is dissolved in an aqueous solution, and the periodate salt does not form a precipitate in the aqueous solution. Reference claim 5 recites wherein the ionic liquid additive is selected from a crown ether or a substituted imidazolium salt. Reference claim 7 depends from claim 5 and recites wherein the substituted imidazolium salt comprises 1-benzyl-3-methylimidazolium chloride ([Bzmim]Cl). Reference claim 12 depends from claim 1 and recites further comprising one or more inorganic salts. The reference claims additionally recite salt concentrations of and molar ratios that overlap the instant claims. Reference claims 29-31 and 35 recite a kit. This is a provisional nonstatutory double patenting rejection because the patentably indistinct claims have not in fact been patented. Claims 1-6, 8, 10, 12-14, 17, 30-31, 33 and 35-39 are provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-6, 22-32 and 41-43 of copending Application No. 18/191,299 (reference application). Although the claims at issue are not identical, they are not patentably distinct from each other because the instant claims are obvious over the reference claims. Reference claim 1 is drawn to a method comprising contacting a solid support with a periodate salt composition. Reference claim 22 depends from claim 1 and recites wherein the composition comprises at least one ionic liquid additive. Reference claim 27 depends from claim 22 and recites wherein the ionic liquid additive is 1-benzyl-3-methylimidazolium chloride ([Bzmim]Cl). Reference claim 28 depends from claim 22 and recites wherein the periodate composition further comprises one or more inorganic salts. The reference claims recite salt concentrations of and molar ratios that overlap the instant claims and also recite the limitations of the claimed kit. The difference between the reference claims and the instant claims is that the instant claims are drawn to the composition recited in the reference claims. However, the instant claims would have been prima facie obvious to one having ordinary skill in the art before the effective filing date of the instant application because the claimed composition was used in the method of the reference claims. One would have been motivated to obtain the claimed composition as a matter of practicing the method of the reference claims. One would have had a reasonable expectation of success because one would have possessed the claimed composition while practicing the method of the reference application. Conclusion No claim is allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to KEVIN MARTIN whose telephone number is (571)270-0917. The examiner can normally be reached Monday - Friday 8 am - 5 pm. 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, Jeffrey Murray can be reached on (571) 272-9023. 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. August 17, 2026 /K.S.M./Examiner, Art Unit 1624 /BRUCK KIFLE/Primary Examiner, Art Unit 1624
Read full office action

Prosecution Timeline

Dec 08, 2023
Application Filed
Aug 20, 2026
Non-Final Rejection mailed — §112, §DOUBLEPATENT (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12746239
COMPOSITIONS AND METHODS COMPRISING ENDOTHELIN A RECEPTOR ANTAGONISTS AND ANDROGEN THERAPIES
4y 10m to grant Granted Sep 29, 2026
Patent 12747214
IMIDAZOLE-BASED SYNTHETIC LIPIDOIDS FOR IN VIVO MRNA DELIVERY INTO IMMUNE CELLS
4y 0m to grant Granted Sep 29, 2026
Patent 12746241
SOLID PHARMACEUTICAL PREPARATION, PREPARATION METHOD THEREFOR AND USE THEREOF
3y 11m to grant Granted Sep 29, 2026
Patent 12746222
IMPLANTABLE DEPOTS FOR LOCALIZED, SUSTAINED, CONTROLLED RELEASE OF THERAPEUTIC AGENTS TO TREAT CANCER AND RELATED CONDITIONS
3y 5m to grant Granted Sep 29, 2026
Patent 12740981
COMPOSITIONS AND METHODS FOR TREATING CANCER
4y 9m to grant Granted Sep 22, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

1-2
Expected OA Rounds
77%
Grant Probability
99%
With Interview (+23.2%)
3y 5m (~7m remaining)
Median Time to Grant
Low
PTA Risk
Based on 158 resolved cases by this examiner. Grant probability derived from career allowance 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