Prosecution Insights
Last updated: October 24, 2026
Application No. 18/755,208

COMPOSITIONS, SYSTEMS, AND METHODS RELATED TO TRANSGENIC HOOKWORMS AS A DRUG PRODUCTION AND DELIVERY TECHNOLOGY

Non-Final OA §102
Filed
Jun 26, 2024
Priority
Jun 26, 2023 — provisional 63/510,315
Examiner
RAHMAN, MASUDUR
Art Unit
1633
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Washington University
OA Round
1 (Non-Final)
73%
Grant Probability
Favorable
1-2
OA Rounds
1y 6m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 73% — above average
73%
Career Allowance Rate
94 granted / 129 resolved
+12.9% vs TC avg
Strong +32% interview lift
Without
With
+31.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 10m
Avg Prosecution
66 currently pending
Career history
174
Total Applications
across all art units

Statute-Specific Performance

§101
4.6%
-35.4% vs TC avg
§103
44.7%
+4.7% vs TC avg
§102
20.3%
-19.7% vs TC avg
§112
24.1%
-15.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 129 resolved cases

Office Action

§102
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 To expedite the compact prosecution, the Examiner is pursuing the amended claims dated 26 June 2024, in which applicant claims 1-16. Therefore, claims 1-16 are pending in the application. Election/Restrictions Applicant’s election without traverse of Group II, claims 9-15 drawn to a method to treat a disease comprising a composition comprising a transgenic hookworm configured to release at least one therapeutic agent in the reply filed on 16 September 2026 is acknowledged. Claims 1-8 and 16 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim. Claims 9-15 are under current examination. Priority This application was filed 06/26/2024, which claims benefit to the Provisional Application 63510315 filed on 06/26/2023. Thus, the earliest possible priority for the instant application is 06/26/2023. Information Disclosure Statement The information disclosure statement (IDS) submitted on 06/05/2025 is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner, and the signed and initialed PTO Forms 1449 are mailed with this action. 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. Claims 9-15 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Hawdon et al., (US20190069528A1; cited in IDS filed 06/05/2025; hereinafter “Hawdon”). With respect to claims 9-14, Hawdon discloses a composition for the treatment or prevention of viral infection (limitation of instant claim 14, [0132]) in a patient in need (Abstract), the composition comprising a transgenic hookworm configured to release at least one therapeutic agent (e.g., therapeutic polypeptides, [0004], [0010], [0124]), the transgenic hookworm comprising a hookworm genome with a configurable chassis inserted ([0020], [0147]), the configurable chassis comprising at least one transgenic DNA sequence encoding at least one therapeutic agent, wherein the at least one transgenic DNA sequence encodes the at least one therapeutic agent (e.g., nucleic acid sequence encodes a vaccine antigen and/or a therapeutic polypeptide, [0008]). at least one promoter DNA sequence operatively linked to the at least one transgenic DNA sequence ([0008]), the at least one promoter DNA sequence encoding at least one promotor configured to drive expression of the at least one transgenic DNA sequence (i.e., EFT-3. [00418], [0026], claim 15 and 36; limitation of instant claims 10-11); and at least one regulatory DNA sequence operatively linked to the at least one transgenic DNA sequence ([0008]; [0012]), the at least one regulatory DNA sequence encoding signaling peptide ASP-1 ([0018], [0161], limitation of instant claims 12-13) configured to enhance production of the at least one therapeutic agent [0051]. administering the transgenic hookworm to the gut of the subject ([0087], [0124]). With respect to claim 15, Hawdon discloses that the transgenic hookworm is administered by oral administration of transgenic hookworm larvae ([0006], [0021], [0105], [0109], claim 40, ) Accordingly, Hawdon anticipates the instant claims 9-15. Conclusion No claims are allowed. Examiner Contact Information Any inquiry concerning this communication or earlier communications from the examiner should be directed to MASUDUR RAHMAN whose telephone number is 571-272-0196. The examiner can normally be reached M-F 8-5 (EST). 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, Christopher Babic, can be reached on (571) 272-8507. 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. /MASUDUR RAHMAN/ Patent Examiner, Art Unit 1633 /JEREMY C FLINDERS/ Primary Examiner, Art Unit 1684
Read full office action

Prosecution Timeline

Jun 26, 2024
Application Filed
Oct 13, 2026
Non-Final Rejection mailed — §102 (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

1-2
Expected OA Rounds
73%
Grant Probability
99%
With Interview (+31.7%)
3y 10m (~1y 6m remaining)
Median Time to Grant
Low
PTA Risk
Based on 129 resolved cases by this examiner. Grant probability derived from career allowance rate.

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