Prosecution Insights
Last updated: October 02, 2026
Application No. 18/911,788

SEMI-DOMINANT MOLECULAR MARKER RELATED TO MAIZE DWARF AND APPLICATION THEREOF

Final Rejection §112
Filed
Oct 10, 2024
Priority
Oct 10, 2022 — CN 202211232107.X +2 more
Examiner
IBRAHIM, MEDINA AHMED
Art Unit
1662
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
China National Seed Group Co. Ltd.
OA Round
2 (Final)
87%
Grant Probability
Favorable
3-4
OA Rounds
2m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 87% — above average
87%
Career Allowance Rate
1281 granted / 1466 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
31 currently pending
Career history
1496
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
15.1%
-24.9% vs TC avg
§112
52.2%
+12.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1466 resolved cases

Office Action

§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 . 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 06/29/2026 in reply to the office action of 04/01/2026 has been entered. Claims 1, 4, 9 and 11 have been amended. The terminal disclaimer has been approved. Claims 1-13 are pending. Claims 1-13 are examined. Withdrawn Objections and Rejections The 102 rejection to claims 4-5 and 11 is withdrawn in view of Applicant’s amendment to the claims. The non-statutory double patenting rejection to the claims has been withdrawn in view of the terminal disclaimer filed 06/29/2026. Claim Rejections - 35 USC § 112 Claims 1-5 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. This rejection is repeated for the reasons of record as set forth in the last Office action of 04/01/2026. Applicant’s arguments have been fully considered but are not deemed persuasive. Claim 1 is indefinite in the recitation of the accession no. “Zm00001d013465” that is not being defined as limited to SEQ ID NO: but rather correspond to materials from non-patent references (i.e. polynucleotide/protein names and genomic databases that are modifiable in content and thus non-static of information). For example, the instant specification [page 3) identifies the “Zm00001d013465” as a maize Dwarf9 gene. A search of the prior art shows the Zm00001d01365 has other names such as ABI84226.1 and is described as dwarf plant9 or (Maize (AGPV4)) Zm00001d013465_P001) and is described as Transcription factor and protein kinase (Source: ITAK). Thus, it is unclear if Zm00001d01365 is a single gene or a genus of genes. It is also unclear as to whether ZM00001d013465 has nucleotide sequences other than SEQ ID NO: 1. Dependent claims do not obviate the rejection so are included in the rejection. Applicant argues that claim 1 as amended explicitly ties ZM00001d013465 gene to SEQ ID NO: 1. This is not found persuasive because the recitation of the accession no. “Zm00001d013465” in the claim is not necessary if the gene is limited to SEQ ID NO: 1. The amended claim does not clarify that the ZM00001d013465 is a single gene having the nucleotide sequence of SEQ ID NO: 1. In addition, “Zm00001d01365” can be modified at anytime leading to a new matter into the issued patent claims. Clarification is required to more clearly define the metes and bounds of the claims. Claim Rejections - 35 USC § 112 Claims 1-13 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. Claims 2 and 8 ( depending from claims 1 and 6, respectively) were in advertently omitted in the rejection in the last office action. This rejection is repeated for the reasons of record as set forth in the last Office action of 04/01/2026. Applicant’s arguments have been fully considered but are not deemed persuasive. The claims as amended are drawn to a modified corn plant or part thereof comprising a non-synonymous mutation in corn gene ZM00001D013465, wherein the mutation corresponds to an addition, substitution, or deletion within the codon corresponding to nucleotide position 130 of SEQ ID NO: 1 or a “homolog” thereof, wherein said corn plant has an improved agronomic characteristic relative to the same characteristic in a control plant; wherein the mutation is a substitution of G to A at the position corresponding to nucleotide position 130 of SEQ ID NO: 1; wherein said improved agronomic characteristic is a reduced plant height. The claims are also drawn to a method of generating a modified corn plant having an improved agronomic characteristic by introducing into a population of corn plant cells a modification through gene editing at a target site in SEQ ID NO:1, or a homolog thereof; said modification is within the codon corresponding to nucleotide position 130 of SEQ ID NO: 1; wherein said modification is a substitution of a G to A at the position corresponding to nucleotide 130 of SEQ ID NO: 1; said method further comprising regenerating a plant from the population of corn plant cells and selecting plants having said improved agronomic characteristic; and a plant produced by said method. The claims are further drawn to a modified polynucleotide having a G to A substitution at a position corresponding to nucleotide position 130 of SEQ ID NO: 1, which is SEQ ID NO: 2 or a homolog thereof. The specification describes identification of the maize dwarf mutant E5779 resulted from one base change in SEQ ID NO: 1 after an EMS mutation of maize population with maize inbred line B73 genetic background. Fig. 1 of the specification shows plants of hybrid B73xE5779 and mutant E5779 having reduced plant height, increased stem diameter and increased brunch number of tassels as compared to a plant of maize inbred line B73. Figure 3B of the specification shows sequencing analysis of the SNP mutation point at (GGG; Glycine) in wild type maize line B73 that resulted in the E5778 mutant (AGG; Arginine) at position 130 of the wildtype dwarf d9 gene known in the prior art (see alignment of sequences shown below; US 7,557,266). The scope of the claims encompasses a genus of modified corn plants comprising a genus of modified homologs of SEQ ID NO: 1, wherein the modification results in improvement of any agronomic characteristics including a reduced plant height; and genus of homologs of the modified polynucleotide of SEQ ID NO: 2. The specification, however, does not describe a representative species of the genus of homologs of SEQ ID NO: 1 or 2. The specification fails to describe a single homolog of SEQ ID NO: 1 or 2 that confers an improved characteristics to corn. The specification fails to define a “homolog” with respect to sequence identity to SEQ ID NO: 1 or 2. Furthermore, the specification fails to describe structural features common to the members of the claimed genus of polynucleotide sequences as broadly claimed . Therefore, the specification has not met either of the two elements of the written description requirement as set forth in the court's decision in Eli Lilly and has not shown her/his possession of the claimed genus at the time of the application. Since the specification fails to describe homologs of SEQ ID NO: 1 and 2, corn plants comprising said homologs and methods of using said homologs to generate modified corn plants are similarly not described. Therefore, the specification fails to sufficiently describe the claimed invention in such full, clear, concise, and exact terms that a skilled artisan would recognize that Applicant was in possession of the invention as broadly claimed at the time of filing. Response to Arguments Applicant argues that the claims that recite "homolog" are limited by “the functional requirement that the mutation must correspond to an addition, substitution, or deletion within the codon corresponding to nucleotide position 130 of SEQ ID NO:1”…, and that the corn plant must have an improved agronomic characteristic”. Applicant asserts that a "homolog" in this context refers to a gene having sufficient sequence similarity to SEQ ID NO: 1 and a mutation at specific location that results in a specific phenotype, demonstrating that Applicants were in possession of the claimed invention at the time of filing. These arguments are not found persuasive because the word “homolog” is not structurally defined in the specification, and the functional requirement alone is insufficient to provide written description to the claimed plant or part thereof. Applicant’s statement of “sufficient sequence similarity” has no basis in the specification. It is true that functionally defined claims can meet the written description requirement if a reasonable structure-function correlation is established, whether by the inventor as described in the specification or known in the art at the time of the filing date” (AbbVie, 759 F.3d at 1298, reiterating Enzo Biochem, Inc., 323 F.3d at 964)(emphasis added). However, in the instant application, there is insufficient evidence of such an established structure-function correlation. In addition, the specification describes no single species of homologs of SEQ ID NO: 1 or 2. As stated above, the scope of the claims encompasses a genus of modified corn plants comprising a non-synonymous mutation in a genus of homologs of SEQ ID NO: 1 or 2, wherein the mutation corresponds to any addition or deletion within the codon corresponding to nucleotide position 130 of SEQ ID NO: 1 or a homolog thereof, and the mutation results in improvement of a genus of agronomic characteristics including a reduced plant height. In contrast, the specification describes a modified corn plant comprising a non-synonymous mutation in SEQ ID NO: 1 in corn, wherein the mutation is a substitution of G to A at a position corresponding to nucleotide position 130 of SEQ ID NO: 1. These are genus claims. “[A] sufficient description of a genus . . . requires the disclosure of either a representative number* of species falling within the scope of the genus or structural features common to the members of the genus so that one of skill in the art can 'visualize or recognize' the members of the genus” (AbbVie, 759 F.3d at 1297, reiterating Eli Lilly, 119 F.3d at 1568-69) (emphasis added). In the instant case, the specification has not described a representative species of polynucleotide sequences of the genus claimed. Therefore, for all the reasons discussed above and in the last Office action, the claimed invention is not adequately described. Conclusion No claim is allowed. THIS ACTION IS MADE FINAL. Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. 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

Oct 10, 2024
Application Filed
Apr 01, 2026
Non-Final Rejection mailed — §112
Jun 29, 2026
Response Filed
Aug 27, 2026
Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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
Patent 12696861
MELON VARIETY NUN 76730 MEM
3y 8m to grant Granted Aug 04, 2026
Patent 12692555
MARKER ASSISTED SELECTION OF TRAITS FOR PRODUCING MEAL FROM BRASSICA NAPUS
3y 1m to grant Granted Jul 28, 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

3-4
Expected OA Rounds
87%
Grant Probability
99%
With Interview (+12.2%)
2y 2m (~2m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1466 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