Prosecution Insights
Last updated: May 29, 2026
Application No. 18/611,063

ARTIFICIAL LEATHER AND METHOD FOR MANUFACTURING THE SAME

Non-Final OA §103
Filed
Mar 20, 2024
Priority
Mar 31, 2023 — TW 112112563
Examiner
ZHANG, MICHAEL N
Art Unit
1781
Tech Center
1700 — Chemical & Materials Engineering
Assignee
San Fang Chemical Industry Co. Ltd.
OA Round
1 (Non-Final)
54%
Grant Probability
Moderate
1-2
OA Rounds
1y 0m
Est. Remaining
78%
With Interview

Examiner Intelligence

Grants 54% of resolved cases
54%
Career Allowance Rate
215 granted / 400 resolved
-11.2% vs TC avg
Strong +25% interview lift
Without
With
+24.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
36 currently pending
Career history
463
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
86.4%
+46.4% vs TC avg
§102
1.3%
-38.7% vs TC avg
§112
6.5%
-33.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 400 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 . Election/Restrictions Applicant’s election of Groups 1, Claims 1-5 in the reply filed on 04/30/2026 is acknowledged. Because applicant did not distinctly and specifically point out the supposed errors in the restriction requirement, the election has been treated as an election without traverse (MPEP § 818.01(a)). Claims 6-10 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected Groups 2-3, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 04/30/2026. The restriction has been made FINAL. 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. Claim 1-2 and 4-5 are rejected under 35 U.S.C. 103 as being unpatentable over Kwon (KR 20170079730 A). Regarding Claim 1-2, Kwon teaches an artificial leather (Paragraph 0001) comprising a base fabric layer (Paragraph 0010), a lower intermediate thermoplastic polyolefin layer, and an upper intermediate thermoplastic polyolefin layer disposed on the lower intermediate thermoplastic polyolefin layer (Paragraph 0016), a primer layer (adhesive layer), and a polyurethane surface layer attached to the upper intermediate thermoplastic polyolefin layer. (Paragraph 0009). Kwon teaches the intermediate layers, such as the upper intermediate thermoplastic layer, can comprise maleic-anhydride modified ethylene or propylene polymers, modified thermoplastic polyolefin (Paragraph 0015). Regarding Claim 4, Kwon teaches the upper surface of the intermediate layer, the modified thermoplastic polyolefin layer, can be corona treated, which increases the adhesiveness of the upper surface (Paragraph 0017). Thus, the modified thermoplastic polyolefin layer will be more adhesive than the non-corona treated thermoplastic polyolefin layer. Regarding Claim 5, Kwon teaches the primer/adhesive layer is chlorinated polypropylene. (Paragraph 0020). Claim 3 is rejected under 35 U.S.C. 103 as being unpatentable over Kwon in view of Hanna et al. (US 2006/0084764 A1) Regarding Claim 3, Kwon teaches the modified thermoplastic olefin layer can include maleic-grafted propylene. (Paragraph 0015). Kwon does not teach the specific maleic anhydride content range. Hanna teaches a polypropylene grafted with maleic anhydride content of 5 to 45 wt%. (Abstract). This overlaps the claimed range. Hanna teaches this grafted polypropylene can be used in multilayer laminates (Paragraph 0032). Hanna teaches higher maleic anhydride content allows for better bonding to polar materials. (Paragraph 0003, 0007, 0027). Thus, it would have been obvious to one with ordinary skill in the art to have the claimed maleic anhydride content in Kwon for better adhesion between the layers. Correspondence Any inquiry concerning this communication or earlier communications from the examiner should be directed to MICHAEL ZHANG whose telephone number is (571)270-0358. The examiner can normally be reached Monday through Friday: 9:30am-3:30pm, 8:30PM-10:30PM. 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, Frank Vineis can be reached at (571) 270-1547. 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. /Michael Zhang/Primary Examiner, Art Unit 1781
Read full office action

Prosecution Timeline

Mar 20, 2024
Application Filed
May 18, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

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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
54%
Grant Probability
78%
With Interview (+24.7%)
3y 2m (~1y 0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 400 resolved cases by this examiner. Grant probability derived from career allowance rate.

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