Prosecution Insights
Last updated: April 19, 2026
Application No. 18/604,089

LETTUCE VARIETY NUN 08250 LTL

Non-Final OA §112
Filed
Mar 13, 2024
Examiner
RADOSAVLJEVIC, ALEKSANDAR
Art Unit
1662
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Nunhems B.V.
OA Round
1 (Non-Final)
82%
Grant Probability
Favorable
1-2
OA Rounds
2y 11m
To Grant
89%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allow Rate
87 granted / 106 resolved
+22.1% vs TC avg
Moderate +7% lift
Without
With
+7.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
25 currently pending
Career history
131
Total Applications
across all art units

Statute-Specific Performance

§101
8.9%
-31.1% vs TC avg
§103
20.6%
-19.4% vs TC avg
§102
15.3%
-24.7% vs TC avg
§112
42.4%
+2.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 106 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 . Claims 1-25 are pending and are examined herein. Specification The disclosure is objected to because of the following informalities: on page 42 (¶0175) the specification lists the accession number under which lettuce variety NUN 08250 is deposited as “_______” and gives the date of the deposit as “[________]”. Additionally, throughout the specification the accession number under which lettuce variety NUN 08250 is deposited is given as “_______”. The deposit accession number and the date need to be specified. Appropriate correction is required. Claim Objections Claims 1, 6, 7, 15-16, 18, 20, and 25 are objected to because of the following informalities: the claims recite that a representative sample of seed of lettuce variety NUN 08250 is deposited under Accession Number NCIMB “________”. These deposit accession numbers are not complete and cannot be used to access the deposited seeds. Appropriate correction is required. 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 1-25 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. Claims 1, 5-7, 9, 15-18, 20, and 25 are indefinite in their recitation of “lettuce variety NUN 08250” because the corresponding deposit number is absent from the claims. Without the deposit number in the independent claims, it is unclear what soybean is being referred to. Common designations of plant varieties can change over time and the term “lettuce variety NUN 08250” is not otherwise known in the art. Thus, the metes and bounds of claims 1, 5-7, 9, 15-18, 20, and 25 are unclear. Claims 1, 6, 7, 15-16, 18, 20, and 25 are indefinite because of the presence of “_____” instead of a NCIMB Accession Number. Because the number is not present, it is unclear to which deposit the claims refer. Claims 2-4, 8, 10-14, 19, and 21-24 depend directly or indirectly from the rejected claims above and, as they fail to clarify the metes and bounds of the claims from which the depend, are rejected on the same grounds. 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. Claims 1-25 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. A. MPEP 2163 section (I) states “Compliance with the written description requirement is essentially a fact-based inquiry that will ‘necessarily vary depending on the nature of the invention claimed.’" Enzo Biochem, 323 F.3d at 963, 63 USPQ2d at 1612.” In this case, the nature of the invention claimed is the creation of a new lettuce cultivar “NUN 08237 LTL”. It is well established that a plant is defined by its phenotype (traits) and its genotype (breeding history). Applicant has not provided any information on the genotype of “lettuce variety NUN 08250” and thus fails to provide an adequate written description of the claimed invention. Specifically, the instant application is silent as to the breeding history used to produce the claimed plant variety. On page 42 of the specification (¶0173) the Applicant only discloses that the instant lettuce variety is an inbred developed through the cross of two unidentified parent lines, followed by self-pollination or backcrossing, followed by pedigree selection and line selection. This is not sufficient to satisfy the written description requirement. Additionally, 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). 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). B. Claim 19 is specifically rejected for an inadequate written description of the broad genus of plants that the claim encompasses. The claim is directed to a lettuce plant produced by mutating a target gene in a plant or plant part of lettuce variety NUN 08250 by gene editing. There is no limit to how much of the genome can be edited relative to the seeds that will be deposited and no limit to how many traits can be changed relative to plants grown from the deposited seeds and relative to the traits disclosed in the trait table. Because there is no particular genomic DNA that is required to remain the same and no particular trait that is required to remain the same, this genus of lettuce plants is not described by either a shared structure (genomic DNA) or by a shared function (phenotypic traits). Applicant has not disclosed any lettuce plants beyond the instant variety or any lettuce plants that are modified from the instant variety by any number of genomic and phenotypic changes. For this reason, the genus of plants encompassed by claim 19 is not sufficiently described across the breadth of the claim. Conclusion No claims are allowed. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ALEKSANDAR RADOSAVLJEVIC whose telephone number is (571)272-8330. The examiner can normally be reached Monday--Friday 8-5:30. 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, Shubo (Joe) Zhou can be reached at 571-272-0724. 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. /ALEKSANDAR RADOSAVLJEVIC/ Examiner, Art Unit 1662 /BRENT T PAGE/ Primary Examiner, Art Unit 1663
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Prosecution Timeline

Mar 13, 2024
Application Filed
Dec 04, 2025
Non-Final Rejection — §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
82%
Grant Probability
89%
With Interview (+7.0%)
2y 11m
Median Time to Grant
Low
PTA Risk
Based on 106 resolved cases by this examiner. Grant probability derived from career allow rate.

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