Prosecution Insights
Last updated: October 25, 2026
Application No. 18/955,685

Methods for Preparing Mutant Plants

Non-Final OA §112§DOUBLEPATENT
Filed
Nov 21, 2024
Priority
Oct 10, 2019 — EU 19202380.2 +2 more
Examiner
IBRAHIM, MEDINA AHMED
Art Unit
1662
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Carlsberg A/S
OA Round
2 (Non-Final)
87%
Grant Probability
Favorable
2-3
OA Rounds
3m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 87% — above average
87%
Career Allowance Rate
1285 granted / 1471 resolved
+27.4% vs TC avg
Moderate +12% lift
Without
With
+12.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 2m
Avg Prosecution
25 currently pending
Career history
1502
Total Applications
across all art units

Statute-Specific Performance

§101
8.0%
-32.0% vs TC avg
§103
14.2%
-25.8% vs TC avg
§102
15.2%
-24.8% vs TC avg
§112
52.0%
+12.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1471 resolved cases

Office Action

§112 §DOUBLEPATENT
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 . The text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. Applicant’s response filed 08/19/2026 has been entered. Claims 1, 4-6, 8-9, 14-19 are amended. Claims 7 and 12 are cancelled. New claim 21 is added. Therefore, claims 1-6, 8-11 and 13-21 are pending are examined. Withdrawn Objections and Rejections The 112(d) rejection to claims 7, 9 (not claim 10) and 12 is withdrawn in view of Applicant’s amendment to the claims. All previous objections and rejections not set forth below have been withdrawn in view of Applicant’s amendment and/or upon further consideration. This office action is made Non-final not necessitated by Applicant’s amendment. Claims 4-5 and 7 (now cancelled and included all its limitations in claim 1) should have been included in the 112(b) and NSDP rejections. Any inconvenience this may have caused Applicant is regretted. Claim Rejections - 35 USC § 112 Claims 1-6, 8-11 and 13-21 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 1 is amended to recite multiple formulas for multiple limitations to determine number of microorganisms to be mutagenized (Np) which render the claim indefinite for the following reasons: 1) the claim requires the Np is “at least 5000”, 2) the claim requires Np “is in the range of 0.7*ONp to 1.3*ONp (assuming “ONp” stands for optimal number of microorganisms to be mutagenized). 3) The claim recites a formula for the “ONp” that includes the limitation “OLS”, Optimal Library Size. 4) The claim also requires a formula for the “OLS”. The formula “OLS = (log(1-PS/100))/(log(1-(1-(1-(Mf x n)) does not correctly define the relationship between the mutation frequency “Mf” and n (number of mutations screened). In addition, the outcome or the numerical values of the formulas for the “Np” (except the at least 5000), “ONp”, and “OLS” are unknown. Therefore, the metes and bounds of the formula for the “OLS”, especially the denominator part, are unclear. 5) It is unclear if the initial target number of microorganisms to be mutagenized is the “at least 5000”, the “Np in the range of 0.7*ONp to 1.3*ONp”, the “ONp”, or the “OLS”; and if the final target number of microorganisms to be mutagenized is the “at least 5000”, the “Np in the range of 0.7*ONp to 1.3*ONp”, the “ONp”, or the “OLS”. Claim 1 is also indefinite in the recitation of a “mutagenesis frequency of Mf” in part (ii). Claim 1, part (i), defines “Mf” as the mutation frequency. Clarification is required to more clearly define the metes and bounds of the claims. Dependent claims 2-6 and 8-20 do not obviate the rejection. Claim 4 is indefinite because parent claim 1 recites “OLS” rather than LS. In addition, since the formula for the OLS in claim 1 is also indefinite, one cannot determine the LS “in the range of 0.5*OLS to 5*OLS”. The numerical value of “OLS” cannot be determined. Clarification is required to more clearly define the metes and bounds of the claim. Claim 5 is indefinite because step (ii) of claim 1 generates a “pool of microorganisms” rather than “sub-pool of microorganisms”. In addition, the outcome and the numerical values and the optimal size of the sub-pools cannot be determined. Clarification is required to more clearly define the metes and bounds of the claim. Claims 10-11 are indefinite because “the rate of mutagenesis” lacks antecedent basis in claim 1. Double Patenting Claims 1-6, 8-11, and 13-21 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-8, 11, 13 and 15-20 of U.S. Patent No. 12, 428, 678 B2; or over claims 1-5, 8-9, 12-14, 17-18 and 21-22 of U.S. Patent No. 11, 884, 972. This rejection is repeated for the reasons of record as set forth in the last Office action of 05/20/2026. Applicant’s arguments filed 08/19/2026 have been considered but are not deemed persuasive. Applicant argues that since claim 7 was not included in the NSDP rejection, the amendment to claim 1 to recite the limitations of claim 7 should obviate the rejection. This is not found persuasive because amended claim 1 is indefinite for the recitation of multiple formulas and because the outcome of the formulas and the numerical values for the Np (other than the at least 5000), ONp, and OLS are unknown. Claims 4-5 are also included in the rejection because the metes and bounds of the formulas recited in the claims are unclear. In addition, the outcome and the numerical values of the “LS” of claim 4 and the optimal size of the sub-pools of claim 5 cannot be determined (see the 112(b) rejection above). Although the claims at issue are not identical, they are not patentably distinct from each other because the claims of both the application and each of the issued patent are drawn to a method of identifying unicellular microorganisms or prokaryotes including yeast or fungi species of a predefined species carrying one or more predetermined mutations in one or more nucleotides of interest (NOIs) in a target sequence, wherein the predetermined mutation is a deletion or substitution of one or more NOIs, said method comprising the steps of: subjecting the unicellular or prokaryote species, to random mutagenesis, thereby providing a pool of organisms from said species, representing a plurality of genotypes; dividing said pool into one or more sub-pools of unicellular organisms; preparing genomic DNA (gDNA) samples, each sample comprising gDNA from each genotype within a sub-pool, while maintaining the potential for multiplication of organisms of each genotype within said sub-pool; performing a plurality of PCR amplifications, each comprising (i) the gDNA sample from one sub-pool, (ii) one or more sets of primers, each set flanking one or more target sequences in the gDNA sample, and (iii) PCR reagents; thereby amplifying the one or more target sequences, wherein each PCR amplification comprises a plurality of compartmentalized PCR amplifications, each compartmentalized PCR amplification comprising part of said gDNA sample; detecting one or more PCR amplification products from the one or more amplification products comprising one or more target sequences comprising the one or more predetermined mutations in the one or more NOIs, thereby identifying one or more sub-pools that comprise said one or more predetermined mutations; dividing the prokaryotic species of the one or more identified sub-pools; preparing gDNA samples, each comprising gDNA from each genotype within a sub-pool, while maintaining the potential for multiplication of microorganisms of each genotype within said sub-pool; performing a plurality of PCR amplifications, each comprising (i) the gDNA sample from one secondary sub-pool, (ii) one or more sets of primers, each set flanking one or more target sequences in the gDNA sample, and (iii) PCR reagents, thereby amplifying the one or more target sequences; detecting PCR amplification products from (h) that comprise one or more target sequences comprising the one or more predetermined mutations in the one or more NOIs, thereby identifying one or more secondary sub-pools that comprise said one or more mutations; and identifying microorganism species within one or more secondary sub-pools that carries said one or more predetermined mutations. The claims of application and the claims of each of the issued patent overlap with respect to the targeted unicellular or prokaryotic microorganisms including yeast and fungi, the steps of inducing mutations, random mutations, and the pool-split approaches, pools of unicellular microorganisms or prokaryotes of different genotypes, sub-pools thereof, wherein the microorganisms or prokaryotes with the determined nucleotide mutations are identified. The claims of both the application and issued patents require steps of preparing DNA samples from sub-pools, performing PCR amplifications, and detecting PCR products comprising the target sequences having mutations in the NOI(s). Therefore, for all the reasons discussed above and in the last Office action, the claims of the instant application are obvious over the claims of each of the issued patent. Conclusion No claim is allowed. Contact Information Any inquiry concerning this communication or earlier communications from the examiner should be directed to MEDINA AHMED IBRAHIM whose telephone number is (571)272-0797. The examiner can normally be reached Monday-Friday, 9:00 - 6:00. 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, BRATISLAV STANKOVIC can be reached at 571-270-0305. 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. MEDINA AHMED. IBRAHIM Primary Examiner Art Unit 1662 /MEDINA A IBRAHIM/ Primary Examiner, Art Unit 1662
Read full office action

Prosecution Timeline

Nov 21, 2024
Application Filed
May 20, 2026
Non-Final Rejection mailed — §112, §DOUBLEPATENT
Aug 19, 2026
Response Filed
Oct 15, 2026
Non-Final Rejection mailed — §112, §DOUBLEPATENT (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12765485
QTLS FOR MCLCV RESISTANCE IN C. MELO
3y 1m to grant Granted Oct 20, 2026
Patent 12760312
PLANT REGULATORY ELEMENTS AND USES THEREOF
2y 2m to grant Granted Oct 13, 2026
Patent 12721291
Albugo-Candida-Resistant Brassica Oleracea Plants
3y 0m to grant Granted Sep 01, 2026
Patent 12703868
METHODS AND COMPOSITIONS FOR MULTIPLEXED EDITING OF PLANT CELL GENOMES
4y 0m to grant Granted Aug 11, 2026
Patent 12703871
MAIZE EVENT DP-004114-3 AND METHODS FOR DETECTION THEREOF
3y 6m to grant Granted Aug 11, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

2-3
Expected OA Rounds
87%
Grant Probability
99%
With Interview (+12.2%)
2y 2m (~3m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1471 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month