Prosecution Insights
Last updated: April 19, 2026
Application No. 18/260,386

METHOD FOR MODIFYING ANIMAL HAIR

Non-Final OA §103
Filed
Jul 05, 2023
Examiner
THOMPSON, CAMIE S
Art Unit
1786
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Mitejima Chemical Co. Ltd.
OA Round
1 (Non-Final)
73%
Grant Probability
Favorable
1-2
OA Rounds
3y 6m
To Grant
84%
With Interview

Examiner Intelligence

Grants 73% — above average
73%
Career Allow Rate
958 granted / 1310 resolved
+8.1% vs TC avg
Moderate +10% lift
Without
With
+10.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 6m
Avg Prosecution
57 currently pending
Career history
1367
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
40.4%
+0.4% vs TC avg
§102
28.0%
-12.0% vs TC avg
§112
20.1%
-19.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1310 resolved cases

Office Action

§103
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 . Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claims 1-10 are rejected under 35 U.S.C. 103 as being unpatentable over Jinsong et al., GB2483886 in view of Kleen et al., DE 19945487m as evidenced by Introducing Amino Acids, Jim Clark 2004. Regarding claims 1-10, Jinsong discloses the treatment of wool [animal hair] [page 1, paragraph 0001 and 0004]. Paragraph 0001 of page 4 discloses wool fiber treated with reducing agent sodium sulphite [sulphite salt] in a buffer solution that is adjusted to pH 8 [weakly alkaline] at 80-85 ºC for 10 minutes. Paragraph 0004 of page 3 of Jinsong discloses that the wool can be further treated with protein crosslinking enzymes such as tranglutaminase. Jinsong is silent to the enzymatic treatment including a protein and a transglutaminase [enzymatic treatment]. Jinsong does disclose that the wool can be further treated with protein crosslinking enzymes such as tranglutaminase. Kleen discloses in paragraph 0005 reduction of damage to keratinous fibers caused by a wide variety of influences. Wool is a keratinous fiber. Kleen discloses in paragraphs 0071-0074 wool first treated with a reducing solution and then treated with casein [protein] and transglutaminase for 60 minutes at 50 ºC. Kleen also discloses that amino acids can be added with the transglutaminase [0066]. Introduction to Amino Acids, Jim Clark provides evidence that amino acids are water soluble. Amino acids are the building blocks of proteins. Jinsong and Kleen are analogous art in that both references are directed to the treatment of wool [animal hair] with a reducing treatment and an enzymatic treatment. One of ordinary skill in the art would utilize the enzymatic treatment of Kleen including treating the wool with casein and transglutaminase after the reduction treatment as the enzymatic treatment of Jinsong for the benefit of enhanced reduction of damage to the wool due to a variety of influences. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to CAMIE S THOMPSON whose telephone number is (571)272-1530. The examiner can normally be reached 8:30 am - 5:30 pm. 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, Jennifer Boyd, can be reached at 571-272-7783. 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. /CAMIE S THOMPSON/Primary Examiner, Art Unit 1786
Read full office action

Prosecution Timeline

Jul 05, 2023
Application Filed
Jul 05, 2023
Response after Non-Final Action
Jul 07, 2023
Response after Non-Final Action
Nov 30, 2023
Response after Non-Final Action
Jan 29, 2026
Non-Final Rejection — §103 (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
73%
Grant Probability
84%
With Interview (+10.5%)
3y 6m
Median Time to Grant
Low
PTA Risk
Based on 1310 resolved cases by this examiner. Grant probability derived from career allow rate.

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