Prosecution Insights
Last updated: April 19, 2026
Application No. 18/206,368

LETTUCE VARIETIES 'EZFLOR', 'BAUER', AND 'ADICAMP'

Final Rejection §112
Filed
Jun 06, 2023
Examiner
FAN, WEIHUA
Art Unit
1663
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Enza Zaden Beheer B V
OA Round
2 (Final)
83%
Grant Probability
Favorable
3-4
OA Rounds
2y 9m
To Grant
96%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allow Rate
527 granted / 634 resolved
+23.1% vs TC avg
Moderate +13% lift
Without
With
+12.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
36 currently pending
Career history
670
Total Applications
across all art units

Statute-Specific Performance

§101
9.2%
-30.8% vs TC avg
§103
21.0%
-19.0% vs TC avg
§102
15.3%
-24.7% vs TC avg
§112
38.4%
-1.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 634 resolved cases

Office Action

§112
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 . This is a Final Office Action in response to amendment filed on November 18, 2025. Claims 1, 5, 10, 13, 16, 24, and 30 are amended; Claims 8-9, 14-15, 17-22 and 26-29 are canceled. Claims 1-7, 10-13, 16, 23-25, and 30-32 remain pending and are examined on their merit herein. Response to Amendment The objection to the Specification regarding the missing Deposit information is withdrawn in view of amendment to the Specification. The rejection of Claims 1-7, 10-13, 16, 23-25, and 30-32 under 35 U.S.C. 112(b) is withdrawn in view of amendment to the claims. The rejection of Claims 1-7, 10-13, 16, 23-25, and 30-32 under 35 U.S.C. 112(a) regarding Biological Deposit is withdrawn in view of amendment to the claims and Specification. The rejection of Claims 5-7, 16, and 24, under 35 U.S.C. 112(a) is withdrawn in view of amendment to the claims. The rejection of claims 1-7, 10-13, 16, 23-25, and 30-32 regarding breeding history is maintained because Applicant has not amended the Specification as required by the rejection. Claim Rejections - 35 USC § 112 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. Written Description regarding Missing Breeding History Claims 1-7, 10-13, 16, 23-25, and 30-32 remain 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 instant Specification fails to satisfy the written description requirement of 35 U.S. Code § 112(a) because it does not provide a description sufficient to conduct an examination, including search of the prior art, nor does it provide enough description to be sufficient to aid in the resolution of questions of infringement. MPEP 2163 (I) states “The written description of the deposited material needs to be as complete as possible because the examination for patentability proceeds solely on the basis of the written description. See, e.g., In re Lundak, 773 F.2d 1216, 227 USPQ 90 (Fed. Cir. 1985); see also 54 Fed. Reg. at 34,880 ("As a general rule, the more information that is provided about a particular deposited biological material, the better the examiner will be able to compare the identity and characteristics of the deposited biological material with the prior art.").” MPEP 2163(I) states “The description must be sufficient to permit verification that the deposited biological material is in fact that disclosed. Once the patent issues, the description must be sufficient to aid in the resolution of questions of infringement." Id. at 34,880.)” (Quoting the Deposit of Biological Materials for Patent Purposes, Final Rule, 54 Fed. Reg. 34,864 (August 22, 1989) at 34,880). In the instant application, a full examination cannot be conducted because applicant failed to provide the breeding history for the instantly claimed plant variety. Specifically, in claim 1, applicant claims a new lettuce plant variety. A plant variety is defined by both its genetics (breeding history) and its traits. In the instant application, applicant has only provided a description of the plant traits as seen in the Specification. The instant application is silent or incomplete as to the breeding history used to produce the claimed plant variety. The criticality of a breeding history in assessing the intellectual property rights of a plant is well recognized in the field of plant breeding. With regard to Plant Patents, MPEP 1605 states that a complete detailed description of a plant includes “the origin or parentage”. Other bodies that grant intellectual property protection for plant varieties require breeding information to evaluate whether protection should be granted to new varieties. A breeding history, including information about parentage and breeding methodology, is part of the requirements of Plant Variety Protection (PVP) applications. That information is used to “determine if development is sufficient to consider the variety new” (See “Applying for a Plant Variety Certificate of Protection” by the USDA reference to Exhibit A). Additionally, the International Union for the Protection of New Varieties of Plants (UPOV) considers breeding history and methodology part of its evaluation of essentially derived plant varieties (See UPOV EDV Explanatory Notes 14 and 30). While the USPTO, USDA, and UPOV have different laws governing intellectual property rights, all recognize that a breeding history is an essential part of adequate description of the plant sought to be protected. The breeding history is also necessary to aid in the resolution of patent infringement by providing information necessary to determine whether differences in plants where genetic differences, differences caused by the environment, or differences within the accepted variation within a variety. Historically, the USPTO has considered breeding history information when determining the patentability of a new plant variety. (See Ex Parte C (USPQ 2d 1492 (1992) and Ex Parte McGowen- Board Decision in Application 14/996,093). In both of these cases, there were many differences cited by the applicant when comparing the prior art and the new plant variety. However, because the breeding history was available, these differences were deemed to be obvious and within the natural variation expected in a backcrossing breeding process. Without a breeding history in these cases, a complete comparison with the prior art could not have been possible. Moreover, a Specification devoid of a breeding history hampers the public’s ability to resolve infringement analysis with plants already in the prior art as well as plants that have not yet been patented. Because the instant specification lacks the breeding history, the public will not be able to fully resolve questions of infringement. Since the breeding history, including the parents, is not known to the public, the public could only rely on the phenotypes of the claimed plants for assessing potential infringement. As seen above in Ex Parte C and Ex Parte McGowan, a trait table is insufficient to differentiate varieties by itself. It has been long established that intracultivar heterogeneity exists in crop species. HAUN teaches that the assumption that elite cultivars are composed of relatively homogenous genetic pools is false. (See Haun Page 645 Left column). Segregation, recombination, DNA transposition, epigenetic processes, and spontaneous mutations are some of the reasons elite cultivar populations will maintain some degree of plant-to-plant variation. (See Haun Page 645 right column and Page 646 left column). In addition to genetic variation, environmental variation may lead to phenotypic variation within a cultivar. (See Großkinsky page 5430 left column 1st full paragraph and right column 2nd full paragraph). In view of this variability, a breeding history is an essential and the least burdensome way to provide genetic information needed at adequate describe a newly developed plant. Thus, an application that does not clearly describe the breeding history does not provide an adequate written description of the invention. To overcome this rejection, applicant must amend the specification/drawing to provide the breeding history used to develop the instant variety or cultivar. When identifying the breeding history, applicant should identify any and all other potential names for all parental lines utilized in the development of the instant variety. For example, if applicant’s breeding history uses proprietary line names, applicant should notate in the specification all other names of the proprietary lines, especially publicly disclosed or patented line information. If the breeding history encompasses a locus conversion or a backcrossing process, applicant should clearly indicate the recurrent parent and the donor plant and specifically name the trait or transgenic event that is being donated to the recurrent parent. If one of the parents is a backcross progeny or locus converted line of a publicly disclosed line, applicant should provide the breeding history of the parent line as well (i.e. grandparents). Applicant is also reminded that they have a duty to disclose information material to patentability. Applicant should also notate the most similar plants which should include any other plants created using similar breeding history (such as siblings of the instant variety). This information can be submitted in an IDS with a notation of the relevancy to the instant application or as information submitted as described in MPEP 724 (e.g., trade secret, proprietary, and Protective Order). Response to Applicant’s Remarks: Applicant asserted that the requested breeding history information has been submitted to the Office, as Trade Secret. Applicant urged that the Trade Secret submission satisfies the requirements of the Office and that the present rejection should be withdrawn. Applicant’s submission has been received and reviewed. However, as established in the Office Action, Applicant has been required to amend the Specification to supplement the required breeding information. Applicant has not provided persuasive reasons for not satisfying that requirement. Therefore, the rejection is maintained for the record. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). 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. No claims are allowed. Claims 1-7, 10-13, 16, 23-25, and 30-32 are free of the prior art for the reasons stated in the previous Office Action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to WEIHUA FAN whose telephone number is (571)270-0398. The examiner can normally be reached Monday-Friday, 9-5. 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, Amjad A Abraham can be reached at (571) 270-7058. 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. WEIHUA . FAN Primary Examiner Art Unit 1663 /WEIHUA FAN/Primary Examiner, Art Unit 1663
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Prosecution Timeline

Jun 06, 2023
Application Filed
Aug 15, 2025
Non-Final Rejection — §112
Nov 18, 2025
Response Filed
Feb 03, 2026
Final Rejection — §112 (current)

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Prosecution Projections

3-4
Expected OA Rounds
83%
Grant Probability
96%
With Interview (+12.9%)
2y 9m
Median Time to Grant
Moderate
PTA Risk
Based on 634 resolved cases by this examiner. Grant probability derived from career allow rate.

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