Prosecution Insights
Last updated: July 17, 2026
Application No. 18/713,281

USE OF A THERMOPLASTIC, BIOBASED AND BIODEGRADABLE MATERIAL HAVING BRITTLE FRACTURE MECHANICS AS A SHELL FOR AN EGG OR EGG-REPLACEMENT PRODUCT, AND VEGAN EGG-REPLACEMENT PRODUCT ENCASED BY SUCH A SHELL

Non-Final OA §102§112
Filed
May 24, 2024
Priority
Nov 25, 2021 — DE 102021130963.8 +3 more
Examiner
SALAMON, PETER A
Art Unit
1793
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
OA Round
1 (Non-Final)
86%
Grant Probability
Favorable
1-2
OA Rounds
2m
Est. Remaining
92%
With Interview

Examiner Intelligence

Grants 86% — above average
86%
Career Allowance Rate
718 granted / 831 resolved
+21.4% vs TC avg
Moderate +6% lift
Without
With
+5.5%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
20 currently pending
Career history
849
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
66.2%
+26.2% vs TC avg
§102
10.1%
-29.9% vs TC avg
§112
3.8%
-36.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 831 resolved cases

Office Action

§102 §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 . In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. Election/Restrictions Applicant's election with traverse of Group I, claims 1 – 10, in the reply filed on 5/8/26 is acknowledged. The traversal is on the ground(s) that the combination of Kulman and Kirboga does not teach a biodegradable, thermoplastic biopolymer and an inorganic or organic salt. This is not found persuasive because Kulman alone comprises poly(3-hydroxybutyrate-co-3-hydroxyvalerate and calcium carbonate. This are both claimed components. See claims 6 and 7. The requirement is still deemed proper and is therefore made FINAL. 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. Claim 3 is 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. It is unclear how a degradation rate can be specified without the corresponding temperature. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 1, 5, 6, 9 and 10 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by US 20190263557 A1 to Kulman, David K. hereinafter “Kulman” and as evidenced by the NPL titled Biodegradation behavior of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) containing phenol compounds in seawater in laboratory testing conditions, Arias et al., Science of the Total Environment, 944, 2024, 173920. Kulman is directed to a complete whole-egg replacement that has extended shelf life [0005]. Regarding claims 1, 5, 6, 9 and 10 Kulman teaches that the material of the shell is a biodegradable, oxo-degradable materials including calcium carbonate [0031]. The shell have an average wall thickness from about 0.2 mm to 0.59 mm [0024]. Claim(s) 1, 2 – 7 and 9 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by the NPL titled Oxygen Barrier and Thermomechanical Properties of Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) Biocomposites Reinforce with Calcium Carbonate Particles, Kirboga et al., Acta Chim.Sloy.,2020, 67, 137-150 hereinafter “Kirboga” and as evidenced by the NPL titled Biodegradation behavior of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) containing phenol compounds in seawater in laboratory testing conditions, Arias et al., Science of the Total Environment, 944, 2024, 173920 hereinafter “Arias”. Kirboga is directed to preparing Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) biocomposites incorporating various percentages of calcium carbonate (Abstract). Regarding claims 1, 2 – 7 and 9, Kirboga teaches at Table 1 two compositions comprising Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) with 1% and 3% calcium carbonate. Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) is a polyhydroxyalkanoate copolymer. Calcium carbonate comprises carbonate. The thickness of a sheet sample was 0.8mm (pg. 140, left column, first paragraph). As to claim 3, Arias shows that the % biodegradation of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) at 160 days is approximately 90 %. Claims 1, 2, 4, 5, 6 and 8 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by US 6174330 B1 Stinson, Jonathon, S. hereinafter “Stinson”. Stinson is directed to a bioabsorbable marker having radiopaque constituents (1: 4 – 10)). Regarding claims 1 and 8, Stinson teaches a composition comprising 10% barium sulfate in PLLA (6: 30 – 41). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to PETER A. SALAMON whose telephone number is 571-270-3018. The examiner can normally be reached M-F: 9AM - 6PM. 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, Curtis Mayes can be reached at 571-272-1234. 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. PAS 6/26/26 /PETER A SALAMON/Primary Examiner, Art Unit 1759
Read full office action

Prosecution Timeline

May 24, 2024
Application Filed
Jun 30, 2026
Non-Final Rejection mailed — §102, §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
86%
Grant Probability
92%
With Interview (+5.5%)
2y 4m (~2m remaining)
Median Time to Grant
Low
PTA Risk
Based on 831 resolved cases by this examiner. Grant probability derived from career allowance rate.

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