Prosecution Insights
Last updated: October 27, 2026
Application No. 18/675,391

Phytase Variants and Polynucleotides Encoding Same

Non-Final OA §103§112
Filed
May 28, 2024
Priority
Aug 13, 2020 — EU 20190917.3 +4 more
Examiner
MEAH, MOHAMMAD Y
Art Unit
1652
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Novozymes A/S
OA Round
2 (Non-Final)
71%
Grant Probability
Favorable
2-3
OA Rounds
7m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 71% — above average
71%
Career Allowance Rate
694 granted / 981 resolved
+10.7% vs TC avg
Strong +43% interview lift
Without
With
+42.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
61 currently pending
Career history
1018
Total Applications
across all art units

Statute-Specific Performance

§101
4.2%
-35.8% vs TC avg
§103
26.1%
-13.9% vs TC avg
§102
17.3%
-22.7% vs TC avg
§112
39.8%
-0.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 981 resolved cases

Office Action

§103 §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 . DETAILED ACTION Claims 1-20 submitted on 7/28/2026 are pending. Claims 1-20 are for examination. Applicants’ argument submitted on 7/28/2026 is considered. Rejections and/or objections not reiterated from previous office actions are hereby withdrawn. Information Disclosure Statement The information disclosure statements (IDS) submitted on 6/24/2026 is in compliance with the provisions of 37 CFR 1.97. Accordingly, the examiner has considered the IDS statements. Claim Rejection Claim Rejections: 35 USC § 112(b) 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. Claim 13, 17 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 13 is indefinite in reciting “further comprising substitutions in the positions 36, 60, 64, 73” because of following reason: Claim 13 depends on claim 12 and claim 12 already teach substitution on position 73. Therefore claim 13 can’t be substituted twice. Correction is required. Claim 17 is indefinite in reciting “amino acid sequence of SEQ ID NO: 2 except insofar as it comprises alterations and substitutions” because of following reason: Seq ID NO:2 is unsubstituted parent phytase and said SEQ id NO: 2 cannot have substituted positions selected the group as disclosed in the claim. Make No sense. . Correction is required. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claims 1-14, 18-20 are rejected under 35 U.S.C. 103 as being unpatentable over Skov et al. (Skov (US 9,611,469, issued from 14/627584 – common assignee). Skov discloses a phytase (SEQ ID NO:2) having 100% sequence identity to the phytase of SEQ ID NO:2 of the instant application and having established disulfide bridges having various combinations including five combinations are selected from the following position pairs: A+B+C+D+E, Skov discloses introducing disulfide bridges at A: 52/99, B: 52/99, and C: 141/199 into the phytase of SEQ ID NO:2. Skov discloses a phytase variant having A/B/D and having one or more amino acid substitutions, such as N203L (see Columns 3-4). Therefore Skov discloses teaches N31C/G52C/A99C/K141C/T177C/V199C/N203L PNG media_image1.png 52 286 media_image1.png Greyscale Skov discloses a phytase variant having A/B and C N203L/P207G (Column 6). Skov also teaches E having position 176 substituted. Therefore a substitution in one or more positions selected from the following: 155, 161, 162, 168, 176 also taught by Skov et al. Therefore it would have been obvious to one of ordinary skill in the art at the time the invention was made based on Skov et al to have phytase variant of phytase of SEQ ID NO:2 having A+B+C+D+E bridge having a variant having alterations N31C/G52C/A99C/K141C/T177C/V199C/N203L and further having a substitution at position 176. Claims 15, 16 and 17 is not included in the 103 rejection because though Skov et al. (Skov (US 9,611,469) teach P207 of SEQ ID NO: 2 is substituted with G ( teach P207G) but not substituted with T or does not teach P207T. Conclusion Claims 1-14 and 18-20 are rejected, claims 15-16 are objected for depending on rejected claims; and no claim is allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Mohammad Meah whose telephone number is 571-272- 1261. The examiner can normally be reached on 8:30-5PM. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Robert Mondesi can be reached on 4089187584. 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 http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system. /MOHAMMAD Y MEAH/Examiner, Art Unit 1652
Read full office action

Prosecution Timeline

May 28, 2024
Application Filed
Jun 09, 2026
Non-Final Rejection mailed — §103, §112
Jul 30, 2026
Response Filed
Oct 02, 2026
Non-Final Rejection mailed — §103, §112 (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

2-3
Expected OA Rounds
71%
Grant Probability
99%
With Interview (+42.8%)
3y 0m (~7m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 981 resolved cases by this examiner. Grant probability derived from career allowance rate.

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