Prosecution Insights
Last updated: April 19, 2026
Application No. 18/068,004

BACTERIA ENGINEERED TO REDUCE HYPERPHENYLALANINEMIA

Non-Final OA §112§DP
Filed
Dec 19, 2022
Examiner
ROBINSON, HOPE A
Art Unit
1652
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Synlogic Operating Company, Inc.
OA Round
3 (Non-Final)
68%
Grant Probability
Favorable
3-4
OA Rounds
3y 5m
To Grant
99%
With Interview

Examiner Intelligence

Grants 68% — above average
68%
Career Allow Rate
700 granted / 1032 resolved
+7.8% vs TC avg
Strong +43% interview lift
Without
With
+43.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
70 currently pending
Career history
1102
Total Applications
across all art units

Statute-Specific Performance

§101
5.2%
-34.8% vs TC avg
§103
20.1%
-19.9% vs TC avg
§102
17.7%
-22.3% vs TC avg
§112
47.0%
+7.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1032 resolved cases

Office Action

§112 §DP
DETAILED ACTION Notice of Pre-AIA or AIA Status 1. The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . 2. A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on October 9, 2025, has been entered. Claim Disposition 3. Claims 1-48, 50-52 and 67 are cancelled. Claims 49 and 53-67 are pending and are under examination. Information Disclosure Statement 4. The Information Disclosure Statement filed on October 9, 2025, has been received and entered. The references cited on the PTO-1449 Form have been considered by the examiner and a copy is attached to the instant Office action. Claim Rejections - 35 USC §112 The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. 5. Claims 49 and 53-67 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for pre-AIA the inventor(s), at the time the application was filed, had possession of the claimed invention. The claims recite added material, which is not supported by the original disclosure. Claims 49 and 53-66 recite “that induces cellular uptake of phenylalanine” and there is not explicit support for that language. The specification at paragraph [0014] discloses that, “in certain embodiments, the genetically engineered bacteria further comprise a phenylalanine transporter gene to increase their uptake of phenylalanine”. It is suggested that the new matter is deleted from the claims. Therefore, the specification lacks adequate written description. Basis For NonStatutory Double Patenting 6. 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. See 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);and, 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) may be used to overcome an actual or provisional rejection based on a nonstatutory double patenting ground provided the conflicting application or patent is shown to be commonly owned with this application. See 37 CFR 1.130(b). Effective January 1, 1994, a registered attorney or agent of record may sign a terminal disclaimer. A terminal disclaimer signed by the assignee must fully comply with 37 CFR 3.73(b). 7. Claims 49 and 53-67 are rejected under the judicially created doctrine of obviousness-type double patenting as being unpatentable over claims 1-33 of U.S. Patent No. 11,618,894. An obvious-type double patenting rejection is appropriate where the conflicting claims are not identical, but an examined application claim is not patentably distinct from the reference claim(s) because the examined claim is either anticipated by, or would have been obvious over, the reference claim(s). See In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); and In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985). Although the conflicting claims are not identical, they are not patentably distinct from each other. The instant application claims are directed to a nucleic acid sequence comprising the genes set forth in items (a) and (b) of for example claim 1. The patented claims are drawn to a non-pathogenic genetically engineered bacterium comprising the genes listed in items (a) and (b) of the instant claims. The dependent claims in the instant application and the patent have a one to one correspondence as well. The patented claims differ in that they are directed to a host, however, the host had the gene claimed instantly thus within possession in the patent. The two sets of claims differ but recite similar embodiments. Although the scope of the two sets of claims differs, the two sets of claims are an obvious variation of each other, thus prima facie obvious. This is an obvious type double patenting rejection. Response to Arguments 8. Applicant’s comments have been considered in full. Withdrawn objections/rejections will not be discussed herein as applicant’s comments are moot. Note that new rejection has been instituted based on amendments made to the claims. Applicant avers that an electronic TD was filed in response to the outstanding obvious type double patenting rejection, however, none was found in the file wrapper. No fees were charged for a TD and the filing receipt did not list that applicant filed a TD with the amendment. Therefore, since no terminal disclaimer was provided the rejection of record remains. Conclusion 9. No claims are presently allowable. Any inquiry concerning this communication or earlier communications from the examiner should be directed to HOPE A ROBINSON whose telephone number is (571) 272-0957. The examiner can normally be reached on Monday-Friday from 9:00 a.m. to 5:00 p.m. 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, Robert Mondesi, can be reached at (408) 918-7584. 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. /HOPE A ROBINSON/Primary Examiner, Art Unit 1652
Read full office action

Prosecution Timeline

Dec 19, 2022
Application Filed
Sep 30, 2024
Non-Final Rejection — §112, §DP
Apr 01, 2025
Response Filed
Apr 04, 2025
Final Rejection — §112, §DP
Oct 09, 2025
Request for Continued Examination
Oct 10, 2025
Response after Non-Final Action
Nov 15, 2025
Non-Final Rejection — §112, §DP (current)

Precedent Cases

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Patent 12584157
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Patent 12559374
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Patent 12553069
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Patent 12553071
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2y 5m to grant Granted Feb 17, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
68%
Grant Probability
99%
With Interview (+43.0%)
3y 5m
Median Time to Grant
High
PTA Risk
Based on 1032 resolved cases by this examiner. Grant probability derived from career allow rate.

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