Prosecution Insights
Last updated: April 19, 2026
Application No. 18/488,859

TREATMENT OF CANAVAN DISEASE

Non-Final OA §102§112§DP
Filed
Oct 17, 2023
Examiner
BERTOGLIO, VALARIE E
Art Unit
1632
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
City Of Hope
OA Round
3 (Non-Final)
64%
Grant Probability
Moderate
3-4
OA Rounds
3y 5m
To Grant
94%
With Interview

Examiner Intelligence

Grants 64% of resolved cases
64%
Career Allow Rate
542 granted / 843 resolved
+4.3% vs TC avg
Strong +30% interview lift
Without
With
+29.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
39 currently pending
Career history
882
Total Applications
across all art units

Statute-Specific Performance

§101
4.4%
-35.6% vs TC avg
§103
24.4%
-15.6% vs TC avg
§102
19.8%
-20.2% vs TC avg
§112
40.0%
+0.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 843 resolved cases

Office Action

§102 §112 §DP
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 . 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and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114.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 03/05/2026 has been entered. Election/Restrictions Applicant's election without traverse of Group I in the reply filed on 06/02/2025 is acknowledged. Claims 14-20 and 28 are withdrawn from further consideration pursuant to 37 CFR 1.142(b), as being drawn to a nonelected invention, there being no allowable generic or linking claim. Applicant timely traversed the restriction (election) requirement in the reply filed on 06/02/2025. Claim Objections Claims 14-20 and 28 are objected to because of the following informalities: These claims are listed as “Withdrawn” but do not have any claim text. Applicant’s Remarks indicate they are withdrawn but the lack of claim text indicates they are canceled. Appropriate correction is required. See 37 CFR 1.121. For example, (4) When claim text shall not be presented; canceling a claim. (i) No claim text shall be presented for any claim in the claim listing with the status of “canceled” or “not entered.” (ii) Cancellation of a claim shall be effected by an instruction to cancel a particular claim number. Identifying the status of a claim in the claim listing as “canceled” will constitute an instruction to cancel the claim. Because Applicant’s remarks indicate the claims are withdrawn, they will be considered as such. Claim 29 is objected to because of the following informalities: Claim 29, at line 4, recites “…iPSCs that are in turn derived from…”. “in turn” indicates a next or future step. It is clear Applicant is sequentially referring to prior steps and the phrase should read “iPSCs that were derived from…”. Appropriate correction is required. Claim Rejections - 35 USC § 112 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. The rejection of claim 29 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 is withdrawn as Applicant has amended step (a) to be a method step. The remaining note still applies-the claim reads on transplant of a wildtype NPC. This, however, is not unclear. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 29-30 remain rejected under 35 U.S.C. 102a1 as being anticipated by Surendran (Developmental Brain Research 153 (2004) 19 – 27). Claim 29 continues to read on transplant of a wild-type NPC population into the brain because it is drawn to “a population comprising NPCs” where the NPCs are recited to be obtained by a particular process. The NPCs resulting from this process do not appear to differ from wild-type NPCs. The same is true for claim 30. The wildtype NPCs are the cells that result from genetic correction of the mutated ASPA gene by gene editing. Surendran taught treatment of a mouse model of Canavan disease by transplant of wildtype NPCs into the brain. Applicant argues that claim 29 has been amended to recite that the NPCs comprise one or more mutations in an ASPA gene. This argument is not persuasive because the mutations are in the somatic source cells that are reprogrammed to pluripotency and differentiated into NPCs followed by genetic correction such that the ASPA gene is no longer mutated. 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 1,2,8 and 29-30 remain provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims 33,38 and 47-58 of copending Application No. 18/296224(reference application). Although the claims at issue are not identical, they are not patentably distinct from each other because claim 1 is generic to all that is recited in claim 33 of ‘224. That is, claim 33 of ‘224 falls entirely within the scope of claim 1 of the instant application. Specifically, claim 1 of ‘224 recites a specific function ASPA gene whereas instant claim 1 is drawn to a wild type or function ASPA gene. Specifics of instant claim 1 are recited in dependent claims 47-58 of the reference application. This is a provisional nonstatutory double patenting rejection because the patentably indistinct claims have not in fact been patented. Applicant requests this rejection be withdrawn in accordance with MPEP 804(I)(B)(1)(b)(i). The application, however, is not in condition for allowance for reason set forth above. This is not the only rejection remaining. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to VALARIE BERTOGLIO whose telephone number is (571)272-0725. The examiner can normally be reached on M-F 6AM-2:30PM. 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, Peter Paras can be reached on 571-272-4517. 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 https://ppair-my.uspto.gov/pair/PrivatePair. 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. VALARIE E. BERTOGLIO, Ph.D. Examiner Art Unit 1632 /VALARIE E BERTOGLIO/ Primary Examiner, Art Unit 1632
Read full office action

Prosecution Timeline

Oct 17, 2023
Application Filed
Jun 19, 2025
Non-Final Rejection — §102, §112, §DP
Oct 24, 2025
Response Filed
Nov 11, 2025
Final Rejection — §102, §112, §DP
Mar 05, 2026
Request for Continued Examination
Mar 11, 2026
Response after Non-Final Action
Mar 16, 2026
Non-Final Rejection — §102, §112, §DP (current)

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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
64%
Grant Probability
94%
With Interview (+29.6%)
3y 5m
Median Time to Grant
High
PTA Risk
Based on 843 resolved cases by this examiner. Grant probability derived from career allow rate.

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