Prosecution Insights
Last updated: October 04, 2026
Application No. 18/164,700

MUTANT CIS-PRENYLTRANSFERASE (CPT) FAMILY PROTEIN, METHOD FOR PRODUCING POLYISOPRENOID, VECTOR, TRANSGENIC PLANT, METHOD FOR PRODUCING PNEUMATIC TIRE, AND METHOD FOR PRODUCING RUBBER PRODUCT

Final Rejection §101§112§DOUBLEPATENT
Filed
Feb 06, 2023
Priority
Mar 02, 2022 — JP 2022-031814
Examiner
SPEED, DEQUANTARIUS JAVON
Art Unit
1663
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
National University Corporation Saitama University
OA Round
4 (Final)
70%
Grant Probability
Favorable
5-6
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 70% — above average
70%
Career Allowance Rate
21 granted / 30 resolved
+10.0% vs TC avg
Strong +69% interview lift
Without
With
+69.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
31 currently pending
Career history
62
Total Applications
across all art units

Statute-Specific Performance

§101
11.1%
-28.9% vs TC avg
§103
27.5%
-12.5% vs TC avg
§102
19.5%
-20.5% vs TC avg
§112
36.9%
-3.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 30 resolved cases

Office Action

§101 §112 §DOUBLEPATENT
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 . Claim Status 1. Claims 1-2 and 17-23 are pending and under examination on the merits. Claims 6-16 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim. Election was made with traverse in the reply filed on February 27, 2025. Claims 3-5 are cancelled. Response to Arguments – Claim Objections 2. Applicant’s arguments and amendments filed 07/17/2026 have overcome the objections of record. Response to Arguments – Claim Rejections - 35 USC § 112(b) 3. Regarding the rejection of claims 1-2 under 35 U.S.C. 112(b), Applicant’s arguments and amendments filed 07/17/2026 have overcome the rejections of record. However, said amendments have necessitated new grounds of rejection under 35 U.S.C. 112(b). Claim Rejections - 35 USC § 112(b) 4. 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. 5. Claims 1-2 and 17-23 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. Claim 1 is indefinite because the structure, and therefore, scope of the claimed mutant CPT family protein is unclear for the reasons discussed below. As discussed below, the recitations in lns. 3-14 and 16-17 are confusing, unclear, and do not appear to add further structure to SEQ ID NO:7. In particular, lns. 3-4, 7-11, and 16-17 appear to describe traits, features, and/or regions of a wildtype protein. For the purpose of compact prosecution, claim 1 is interpreted to encompass a mutant CPT family protein comprising an amino acid sequence having at least 95% sequence identity to SEQ ID NO:7, wherein the protein comprises positions 1-32 of SEQ ID NO:1, and wherein the mutant CPT protein binds to NgBR. If none of the clauses recited in lns. 3-17 add further structure to the claimed mutant CPT family protein, it is suggested Applicant delete the recitations in lns. 3-17. The metes and bounds of claim 1 are indefinite because the antecedent basis of “the CPT family protein” in ln. 3 is unclear. Does the recitation of “the CPT family protein” in ln. 3 refer to the mutant CPT family protein, the wild-type CPT family protein, or the variant comprised with the mutant CPT family protein? The presence of multiple reasonable interpretations renders the claim indefinite. The scope of claim 1 are indefinite because it is unclear what is encompassed by an N-terminal region that “corresponds” to positions in another protein. Does the N-terminal region that corresponds to position 1-72 of SEQ ID NO:3 comprise positions 1-72 of SEQ ID NO:3? Is the N-terminal regional that corresponds to position 1-72 of SEQ ID NO:3 limited to a region consisting of 72 amino acids? Does the N-terminal region of the mutant CPT family protein consist of positions 1-72 of the mutant CPT family? It is unclear how an N-terminal region corresponding to positions 1-72 of SEQ ID NO:3 can comprise 95% sequence identity to positions 1-32 of SEQ ID NO:1. Sequences within 95% sequence identity positions 1-32 of SEQ ID NO:1 encompass those comprising insertions, deletions, and/or substitutions of up to two amino acids; thus, the broadest reasonable interpretation of an N-terminal region having 95% sequence identity to positions 1-32 of SEQ ID NO:1 is limited to a regional having only 30-34 amino acids. An N-terminal region corresponding to positions 1-72 of SEQ ID NO:3 comprises 72 amino acids. The structure of an N-terminal regional that corresponds to position 1-72 of SEQ ID NO:3 is unclear and open to multiple reasonable interpretations. Therefore, the claim is indefinite. Because the recitation of an N-terminal region as recited in claim 1 is indefinite, claims 17-18 are also indefinite. The structure, size, and position of the “N-terminal region” of claims 1 and 17-18 are unclear. Regarding claim 18, it is unclear if the “N-terminal region” is comprised within positions 1-35 of the mutant CPT polypeptide sequence or overlaps with, but is not restricted to, positions 1-35 of the mutant CPT polypeptide sequence. If the N-terminal region comprises positions 1-72, it is unclear how such a sequence could be located within positions 1-35. The scope of claim 23 is indefinite because it is unclear what is encompassed by a HRT1-REF binding protein (HRBP) “derived” from a rubber tree. It is unclear what features/structures are retained in the derived HRBP in comparison to the protein from which it is derived. It is unclear if the derived HRBP was discovered in/obtained from, and therefore natively present in, the recited species/organisms. Therefore, the structure of the recited NgBR and its relation to the HRBP from which it was “derived” is unclear. Dependent claims are included. Appropriate correction is required. Response to Arguments – Claim Rejections - 35 USC § 112(a) 6. Applicant’s arguments and amendments filed 07/17/2026 have overcome the rejections of record. Response to Arguments – Double Patenting 7. Applicant’s arguments and amendments filed 07/17/2026 have been carefully considered but are not persuasive and do not overcome the rejections of record. Applicant traverses the rejections and requests reconsideration of the claims in view of the present amendments. Applicant does not provide a clear argument explaining if and/or how the previously and/or currently presented claims are patentably distinct from the cited copending claims. Furthermore, claim 1 is indefinite and is herein interpreted to encompass a mutant CPT family protein comprising an amino acid sequence having at least 95% sequence identity to SEQ ID NO:7, wherein the protein comprises positions 1-32 of SEQ ID NO:1, and wherein the mutant CPT protein binds to NgBR. Claim 1 of copending Application No. 18/165,026 is indefinite because the structure, and therefore, scope of the claimed mutant CPT family protein is unclear. Copending claim 1 is interpreted to encompass a mutant CPT family protein comprising an amino acid sequence having at least 95% sequence identity to copending SEQ ID NO:12, wherein the protein comprises positions 1-32 of copending SEQ ID NO:1, and wherein the mutant CPT protein binds to NgBR. Instant SEQ ID NO:1 and copending SEQ ID NO:1 are identical sequences. Instant SEQ ID NO:7 and copending SEQ ID NO:12 are identical sequences (see below). Therefore, instant claim 1 and copending claim 1 are directed to the same polypeptide sequence, and therefore, the same invention. PNG media_image1.png 461 653 media_image1.png Greyscale Accordingly, the claims remain rejected on the grounds of nonstatutory double patenting as being unpatentable over claims of copending Application No. 18/165,026. Furthermore, Applicant’s amendments have necessitated new grounds for rejections. Non-Statutory Double Patenting 8. 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. 9. Claims 1-2, 17-19, and 21-23 are provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-2, 19, and 21-26 of copending Application No. 18/165,026. Although the claims at issue are not identical, they are not patentably distinct from each other. Instant claim 1 is indefinite (see rejection of claims under 35 U.S.C. 112(b)) and is herein interpreted to encompass a mutant CPT family protein comprising an amino acid sequence having at least 95% sequence identity to instant SEQ ID NO:7, wherein the protein comprises positions 1-32 of SEQ ID NO:1, and wherein the mutant CPT protein binds to NgBR. Claim 1 of copending Application No. 18/165,026 is indefinite because the structure of the claimed mutant CPT family protein is unclear. In particular, the recitations in lns. 3-29 are confusing, unclear, and do not appear to add further structure to copending SEQ ID NO:12. Therefore, copending claim 1 is interpreted to encompass a mutant CPT family protein comprising an amino acid sequence having at least 95% sequence identity to copending SEQ ID NO:12, wherein the protein comprises positions 1-32 of copending SEQ ID NO:1, and wherein the mutant CPT protein binds to NgBR. Instant SEQ ID NO:1 and copending SEQ ID NO:1 are identical sequences. Though copending claim 1 explicitly recites mutations within a C-terminal region, instant claim 1 also encompasses mutations within a C-terminal region. In fact, instant SEQ ID NO:7 and copending SEQ ID NO:12 are identical sequences. Therefore, instant claim 1 and copending claim 1 are directed to the same polypeptide sequences, and therefore, the same invention. Regarding instant claim 2, claim 2 of copending Application No. 18/165,026 includes a further recitation wherein the N-terminal and C-terminal regions of the mutant CPT family protein shares at least 98% sequence identity with the N- and C-termini, respectively, of a wildtype CPT protein. Instant claim 2 requires the claimed protein share at least 98% sequence identity to a wildtype protein in its N-terminal region but does not exclude, and therefore encompasses, a C-terminal region having at least 98% sequence identity to the C-terminal region of a wild CPT protein. Accordingly, instant claim 2 and claim 2 of co-pending Application No. 18/165,026 are not patentably distinct. Regarding instant claim 17, claim 19 of co-pending Application No. 18/165,026 further recites a mutation wherein the N-terminal and C-terminal regions of the mutant CPT family protein shares at least 99% sequence identity with the N- and C-termini of a wildtype CPT protein. Instant claim 2 requires the claimed protein share at least 99% sequence identity to a wildtype protein in both its N-terminal region. Because instant claim 17 encompasses mutant CPT family proteins comprising further mutations within a C-terminal region, instant claim 17 and claim 19 of co-pending Application No. 18/165,026 are not patentably distinct. Both instant claim 18 and copending claim 20 recite identical additional limitations wherein the N-terminal region of the mutant CPT family protein is within 35 amino acids downstream of the N-terminus. Accordingly, instant claim 18 and copending claim 20 are not patentably distinct. Regarding instant claim 18, the claim is indefinite for the reasons described above in the rejection of the claims under 35 U.S.C. 112(b). Similarly, claim 21 of copending Application No. 18/165,026 also recites an N-terminal amino acid sequence that is impossibly downstream of the N-terminus of the mutant CPT family protein. Accordingly, instant claim 18 and claim 20 of copending Application No. 18/165,026 are not patentably distinct. Though instant claim 18 is silent to mutations within a C-terminal region of the CPT family protein, such mutations are not excluded from the mutant CPT family protein. Instant claim 19 and copending claim 22 recite additional limitations wherein the mutant CPT family protein comprises the amino acid sequence of instant SEQ ID NO:7 and copending SEQ ID NO:12, respectively. Because instant SEQ ID NO:7 is identical to copending SEQ ID NO:12 and instant claim 1 is deemed patentably indistinct from copending claim 1, instant claim 19 and copending claim 22 are not patentably distinct. Instant claim 21 and copending claim 24 recite additional limitations wherein the mutant CPT family protein comprises an amino acid sequence having at least 98% sequence identity to instant SEQ ID NO:7 or copending SEQ ID NO:12, respectively. Because instant SEQ ID NO:7 is identical to copending SEQ ID NO:12 and instant claim 1 is deemed patentably indistinct from copending claim 1, instant claim 21 and copending claim 24 are not patentably distinct. Instant claim 22 and copending claim 25 recite additional limitations wherein the mutant CPT family protein comprises an amino acid sequence having at least 99% sequence identity to instant SEQ ID NO:7 or copending SEQ ID NO:12, respectively. Because instant SEQ ID NO:7 is identical to copending SEQ ID NO:12 and instant claim 1 is deemed patentably indistinct from copending claim 1, instant claim 22 and copending claim 25 are not patentably distinct. Instant claim 23 and copending claim 26 recite identical limitations wherein the NgBR is an NgBR family protein corresponding to HRT1-REF bridging protein (HRBP) derived from a rubber tree. Because instant SEQ ID NO:7 is identical to copending SEQ ID NO:12 and instant claim 1 is deemed patentably indistinct from copending claim 1, instant claim 23 and copending claim 26 are not patentably distinct. This is a provisional nonstatutory double patenting rejection because the patentably indistinct claims have not in fact been patented. Statutory Double Patenting 10. A rejection based on double patenting of the “same invention” type finds its support in the language of 35 U.S.C. 101 which states that “whoever invents or discovers any new and useful process... may obtain a patent therefor...” (Emphasis added). Thus, the term “same invention,” in this context, means an invention drawn to identical subject matter. See Miller v. Eagle Mfg. Co., 151 U.S. 186 (1894); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Ockert, 245 F.2d 467, 114 USPQ 330 (CCPA 1957). A statutory type (35 U.S.C. 101) double patenting rejection can be overcome by canceling or amending the claims that are directed to the same invention so they are no longer coextensive in scope. The filing of a terminal disclaimer cannot overcome a double patenting rejection based upon 35 U.S.C. 101. 11. Claim 20 is provisionally rejected under 35 U.S.C. 101 as claiming the same invention as that of claim 23 of copending Application No. 18/165,026. Instant claim 20 is directed to a mutant CPT family protein wherein the mutant CPT family protein consists of instant SEQ ID NO:7. The term “consists of” excludes additional factors; therefore, the amino acid sequence of the mutant CPT family protein of instant claim 20 is instant SEQ ID NO:7. Copending claim 23 is directed to a mutant CPT family protein consisting of copending SEQ ID NO:12; therefore, the amino acid sequence of the mutant CPT family protein of copending claim 23 is copending SEQ ID NO:12. Instant SEQ ID NO:7 is identical to copending SEQ ID NO:12. Thus, instant claim 20 and copending claim 23 are directed to the exact same sequence, and therefore, the same invention. This is a provisional statutory double patenting rejection since the claims directed to the same invention have not in fact been patented. Conclusion 12. No claim is allowed. The closest prior art, Alexandrov et al. (EP1033405-A2, published 09/06/2000 (N)), teaches a CPT family protein (SEQ ID NO:49062) wherein the CPT family protein has at least 87.5% sequence identity to the amino acid sequence of SEQ ID NO:7. However, Alexandrov does not teach NgBR or an N-terminal region having at least 95% sequence identity to SEQ ID NO:7. 13. 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. Examiner’s Contact Information 14. Any inquiry concerning this communication or earlier communications from the examiner should be directed to DEQUANTARIUS J SPEED whose telephone number is (703)756-4779. The examiner can normally be reached M-F; 9AM-5PM ET. 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, Amjad Abraham can be reached on (571)-270-7058. 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. /DEQUANTARIUS JAVON SPEED/Junior Examiner, Art Unit 1663 /Amjad Abraham/SPE, Art Unit 1663
Read full office action

Prosecution Timeline

Show 9 earlier events
Feb 05, 2026
Request for Continued Examination
Feb 11, 2026
Response after Non-Final Action
Apr 23, 2026
Non-Final Rejection mailed — §101, §112, §DOUBLEPATENT
Jun 03, 2026
Interview Requested
Jun 17, 2026
Examiner Interview Summary
Jun 17, 2026
Applicant Interview (Telephonic)
Jul 17, 2026
Response Filed
Aug 26, 2026
Final Rejection mailed — §101, §112, §DOUBLEPATENT (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12740524
SUNFLOWER SEED
3y 8m to grant Granted Sep 22, 2026
Patent 12733662
MILLET AND FOOD PRODUCTS WITH REDUCED LIPASE ACTIVITY, GENES AND IMPLEMENTATION THEREOF
2y 7m to grant Granted Sep 15, 2026
Patent 12692527
GLUCURONOSYLTRANSFERASE, GENE ENCODING SAME AND METHOD FOR USING THE SAME
3y 11m to grant Granted Jul 28, 2026
Patent 12692508
ENGINEERING INCREASED SUBERIN LEVELS BY ALTERING GENE EXPRESSION PATTERNS IN A CELL-TYPE SPECIFIC MANNER
3y 3m to grant Granted Jul 28, 2026
Patent 12655442
SELF-COMPATIBILITY IN CULTIVATED POTATO
4y 7m to grant Granted Jun 16, 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

5-6
Expected OA Rounds
70%
Grant Probability
99%
With Interview (+69.2%)
2y 11m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 30 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