Prosecution Insights
Last updated: July 17, 2026
Application No. 18/262,648

RECOMBINANT EOMES RESTORES ANTI-CANCER ACTIVITY OF IMMUNE CELLS

Non-Final OA §102§112
Filed
Jul 24, 2023
Priority
Feb 15, 2021 — provisional 63/149,417 +1 more
Examiner
NICKOL, GARY B
Art Unit
1643
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Arizona Board of Regents on Behalf of the University of Arizona
OA Round
1 (Non-Final)
44%
Grant Probability
Moderate
1-2
OA Rounds
9m
Est. Remaining
72%
With Interview

Examiner Intelligence

Grants 44% of resolved cases
44%
Career Allowance Rate
27 granted / 61 resolved
-15.7% vs TC avg
Strong +28% interview lift
Without
With
+28.2%
Interview Lift
resolved cases with interview
Typical timeline
3y 9m
Avg Prosecution
43 currently pending
Career history
100
Total Applications
across all art units

Statute-Specific Performance

§101
1.8%
-38.2% vs TC avg
§103
27.4%
-12.6% vs TC avg
§102
22.4%
-17.6% vs TC avg
§112
27.9%
-12.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 61 resolved cases

Office Action

§102 §112
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 . Election/Restrictions Applicant’s election of Group I in the reply filed on 04/26/26 is acknowledged. Because applicant did not distinctly and specifically point out any supposed errors in the restriction requirement, the election has been treated as an election without traverse (MPEP § 818.01(a)). Upon review, the species requirement is withdrawn. Claims 1-14, 16-19, 23-24 are pending. Claims 16-19, and 23-24 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim.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 1-14 are pending and under consideration. Specification The disclosure is objected to because of the following informalities: On page 4, line 16, the following statement is made: The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawing(s) will be provided by the Office upon request and payment of the necessary fee. However, Applicants are reminded that color photographs and color drawings are not accepted in utility applications unless a petition filed under 37 CFR 1.84(a)(2) is granted. To date, no such petition appears to have been filed. Any such petition must be accompanied by the appropriate fee set forth in 37 CFR 1.17(h), one set of color drawings or color photographs, as appropriate, if submitted via the USPTO patent electronic filing system or three sets of color drawings or color photographs, as appropriate, if not submitted via the via USPTO patent electronic filing system, and, unless already present, an amendment to include the following language as the first paragraph of the brief description of the drawings section of the specification: Color photographs will be accepted if the conditions for accepting color drawings and black and white photographs have been satisfied. See 37 CFR 1.84(b)(2). Appropriate correction is requested. 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. Claims 3, 6-8 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 6 recites the limitation "the affinity tag" in Claim 1. There is insufficient antecedent basis for this limitation in the claim. Claims 3, and 7-8 recite the limitation "the Eomesodermin transcription factor associated domain” in Claim 1. There is insufficient antecedent basis for this limitation in the claim. 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. Claims 1-6, 9-10, 13-14 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 applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. This is a Written Description rejection. The claims are broadly drawn to nucleotide sequences encoding fusion proteins which comprise “an Eomesodermin domain” or “an Eomesodermin transcription factor associated domain”. However, the specification does not provide a definition or clear metes and bounds of what encompasses these claimed domains. The specification only provides limited guidance on what could be structurally included as such domains. For example, the specification teaches [0062] that in one embodiment, the transcription factor associated domain of Eomesodermin (Eomes) comprises residues 267-686 of SEQ ID NO: 4 or residues 269-707 of SEQ ID NO: 6. Other transcription factor associated domain of Eomesodermin proteins from other organisms may be useful for the construction of nucleotide or polypeptide constructs as described herein. Or, [specification, 0066] in another aspect, the Eomesodermin transcription factor associated domain comprises SEQ ID NO: 2 or 4. In another aspect, the Eomesodermin transcription factor associated domain comprises residues 267-686 of SEQ ID NO: 2 or 4. The claims are also inclusive broadly inclusive of nuclear localization signals or protein-transduction domain sequences. See Table 2, page 12. However, in contrast to the generic claiming of Eome domains, the sequences in Table 2 represent an adequate written description of a genus with widely diverse species falling within the scope of the genus. Thus, as currently claimed, the encoded domains are drawn to a large genus. A description of a genus of may be achieved by means of a recitation of a representative number of species, defined by structure, falling within the scope of the genus. However, the instant specification fails to provide sufficient descriptive information, such as definitive structural or functional features of the claimed genus of Eomesodermin domains or Eomesodermin transcription factor associated domains that would distinguish the claimed proteins from other molecules. Since the disclosure fails to describe the common attributes or characteristics that identify members of the genus, and because the genus is highly variant, the claiming of such generic domains is insufficient to describe the large genus. Thus, one of skill in the art would reasonably conclude that the disclosure fails to provide a representative number of species to describe and enable the genus as broadly claimed. Vas-Cath, Inc. v. Mahurkar, 935 F.2d 1555, 1563-64, 19 USPQ2d 1111, 1117 (Fed. Cir. 1991) clearly states “applicant must convey with reasonable clarity to those skilled in the art that, as of the filing date sought, he or she was in possession of the invention. The invention is, for purposes of the ‘written description’ inquiry, whatever is now claimed.” (See page 1117.) The specification does not “clearly allow persons of ordinary skill in the art to recognize that [he or she] invented what is claimed.” (See Vas-Cath at page 1116). As discussed above, the skilled artisan cannot envision the detailed chemical structure of the encompassed genus of Eome-like domains, and therefore conception is not achieved until reduction to practice has occurred, regardless of the complexity or simplicity of the method of isolation. Adequate written description requires more than a mere statement that it is part of the invention and reference to a potential method of isolating it. The compound itself is required. Incorporating any one of Claims 7-8, or 11-12 into the independent claim would obviate this rejection. 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) 1-3, 5-6, and 13-14 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Del’Guidice et al. (WO 2018/068135, April 2018). (Note: US20230348537 is used for specific column teachings.) As to claims 1-2, and 13-14, Del’Guidice et al. teach cells and vector-based delivery (plasmid) expressing an Eomesodermin domain transcription factor (see claim 31) and one or more nuclear localization signals (Table III) and or a cell-penetrating peptide. Protein transduction domains are from cell-penetrating peptides (See claims 10-11). As to claim 3, Del’Guidice et al. teach [0124] peptide shuttle agents of the present description may comprise one or more suitable linkers (e.g., flexible polypeptide linkers). In some embodiments, linkers can be used to separate two more domains (CPDs, ELDs, or histidine-rich domains) from one another. In some embodiments, linkers may be formed by adding sequences of small hydrophobic amino acids without rotatory potential (such as glycine) and polar serine residues that confer stability and flexibility. Linkers may be soft and allow the domains of the shuttle agents to move. In some embodiments, prolines may be avoided since they can add significant conformational rigidity. In some embodiments, the linkers may be serine/glycine-rich linkers (e.g., GGS, GGSGGGS, GGSGGGSGGGS, or the like). As to claim 5-6, Del’Guidice et al. teach [0417] that affinity tags can be incorporated. See Example 4. Construction was performed as described in Example 3.4, except that a TAT sequence was cloned between the 6x histidine tag and the GFP sequences. The 6x histidine tag, TAT, GFP and a stop codon (-) are separated by serine/glycine rich linkers. Allowable Subject Matter Claims 11-12 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Any inquiry concerning this communication or earlier communications from the examiner should be directed to GARY B NICKOL, Ph.D. whose telephone number is (571)272-0835. The examiner can normally be reached M-F 9AM-5:30PM. 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, Julie Wu can be reached at 571-272-5205. 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. /GARY B NICKOL/Primary Examiner, Art Unit 1643
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Prosecution Timeline

Jul 24, 2023
Application Filed
May 22, 2026
Non-Final Rejection mailed — §102, §112 (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
44%
Grant Probability
72%
With Interview (+28.2%)
3y 9m (~9m remaining)
Median Time to Grant
Low
PTA Risk
Based on 61 resolved cases by this examiner. Grant probability derived from career allowance rate.

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