Prosecution Insights
Last updated: October 25, 2026
Application No. 18/506,575

Compositions Containing Protein Loaded Exosome and Methods for Preparing and Delivering the Same

Non-Final OA §DP
Filed
Nov 10, 2023
Priority
May 04, 2015 — RE 10-2015-0062604 +11 more
Examiner
HAMA, JOANNE
Art Unit
1647
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Ilias Biologics Inc.
OA Round
3 (Non-Final)
25%
Grant Probability
At Risk
3-4
OA Rounds
8m
Est. Remaining
66%
With Interview

Examiner Intelligence

Grants only 25% of cases
25%
Career Allowance Rate
68 granted / 268 resolved
-34.6% vs TC avg
Strong +40% interview lift
Without
With
+40.2%
Interview Lift
resolved cases with interview
Typical timeline
3y 8m
Avg Prosecution
46 currently pending
Career history
345
Total Applications
across all art units

Statute-Specific Performance

§101
6.6%
-33.4% vs TC avg
§103
38.1%
-1.9% vs TC avg
§102
15.6%
-24.4% vs TC avg
§112
25.2%
-14.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 268 resolved cases

Office Action

§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 . Applicant filed a response to the Final Action of 6/4/2026 on 9/3/2026. Claims 1-12, 15, 16 are canceled. Claims 21 is amended. Claims 27-29 are new. Claims 13, 14, 17-29 are under consideration. While the action of 6/4/2026 was final, it is noted that another rejection should have been made in the action. Withdrawn Rejections Double Patenting Claims 13, 14, 17-25 were rejected on the ground of nonstatutory double patenting as unpatentable over claims 1-10, 13, 18 of US Patent 11872193. The rejection is withdrawn as applicant has filed a terminal disclaimer. New Rejection 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 13, 14, 17-29 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-17 of U.S. Patent No.10702581 (‘581). Although the claims at issue are not identical, they are not patentably distinct from each other. Both claim sets are drawn to an exosome comprising a super repressor IKB (sr IKB) (SEQ ID NO: 5 in the instant claims). Specifically, ‘581 is drawn to the method of making (e.g. claim 1 of ‘581) and the exosome made by the method (e.g. claim 13 of ‘581). The instant claims are drawn to the exosome with sr IKB. sr IKB is recited in claim 6 of ‘581. Both claim sets comprise a photo-specific binding protein (claims 9-12 of ‘581 and instant claims 17-20, 26). Exosome specific markers are recited in both sets of claims (instant claims 27-29 and claim 8 of ‘581). Conclusion No claims allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to JOANNE HAMA whose telephone number is (571)272-2911. The examiner can normally be reached Monday-Thursday 8-4. 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, Bonnie Eyler can be reached at 571-272-1200. 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. /JOANNE HAMA/Supervisory Patent Examiner, Art Unit 1647
Read full office action

Prosecution Timeline

Nov 10, 2023
Application Filed
Dec 10, 2025
Non-Final Rejection mailed — §DP
Mar 10, 2026
Response Filed
Jun 04, 2026
Final Rejection mailed — §DP
Sep 03, 2026
Response after Non-Final Action
Sep 15, 2026
Non-Final Rejection mailed — §DP (current)

Precedent Cases

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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
25%
Grant Probability
66%
With Interview (+40.2%)
3y 8m (~8m remaining)
Median Time to Grant
High
PTA Risk
Based on 268 resolved cases by this examiner. Grant probability derived from career allowance rate.

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