Prosecution Insights
Last updated: April 19, 2026
Application No. 18/536,496

Vehicle wheel brake and brake component having an evaporable material

Non-Final OA §102§103
Filed
Dec 12, 2023
Examiner
LIU, HENRY Y
Art Unit
3654
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
HL Mando Corporation
OA Round
1 (Non-Final)
76%
Grant Probability
Favorable
1-2
OA Rounds
2y 8m
To Grant
88%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allow Rate
997 granted / 1315 resolved
+23.8% vs TC avg
Moderate +13% lift
Without
With
+12.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
19 currently pending
Career history
1334
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
49.8%
+9.8% vs TC avg
§102
31.9%
-8.1% vs TC avg
§112
13.2%
-26.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1315 resolved cases

Office Action

§102 §103
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 . DETAILED ACTION This is the first action on the merits for application 18/536496. Claims 1-11 are currently pending in this application. Priority Receipt is acknowledged of papers submitted under 35 U.S.C. 119(a)-(d), which papers have been placed of record in the file. 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) 1-3, 5, 11 is/are rejected under 35 U.S.C. 102a1 as being anticipated by LITTLEFIELD (4,313,869). Regarding Claim 1, LITTLEFIELD teaches a Vehicle wheel brake, comprising a material that is configured to evaporate when operating the vehicle wheel brake (Col. 3 lines 20-32, Col. 4 lines 13-19). Regarding Claim 2, LITTLEFIELD teaches wherein an evaporation temperature of the material is between 100° C and 300° C (Col. 3 lines 20-32, Col. 4 lines 13-19). Regarding Claim 3, LITTLEFIELD teaches wherein the material is provided at an outwardly facing surface of the vehicle wheel brake and/or at a surface facing a brake disc of the vehicle wheel brake (Col. 3 lines 20-32, Col. 4 lines 13-19). Regarding Claim 5, LITTLEFIELD teaches wherein the material is configured to form vapour or an aerosol when evaporating (Col. 3 lines 20-32, Col. 4 lines 13-19). Regarding Claim 11, LITTLEFIELD teaches a brake component for a vehicle wheel brake, wherein the brake component comprises a material that is configured to evaporate when operating the vehicle wheel brake, the brake component being a brake pad (Col. 3 lines 20-32, Col. 4 lines 13-19). 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(s) 6, 7 is/are rejected under 35 U.S.C. 103 as being unpatentable over LITTLEFIELD (4,313,869) in view of SVENSSON (2022/0290727). Regarding Claim 6, LITTLEFIELD does not teach wherein the material is comprised by a local coating applied to at least one component of the vehicle wheel brake; or wherein the material is comprised by a paint or a clear coat applied to at least one component of the vehicle wheel brake. SVENSSON teaches wherein the material is comprised by a local coating applied to at least one component of the vehicle wheel brake; or wherein the material is comprised by a paint or a clear coat applied to at least one component of the vehicle wheel brake [0032]. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to change the brakes in LITTLEFIELD to have the coating in SVENSSON so the brakes operate smoothly. Regarding Claim 7, LITTLEFIELD does not teach wherein the material is one of the following: a fluoropolymer material; a partial anodizing or hard anodizing coating. SVENSSON teaches wherein the material is one of the following: a fluoropolymer material [0032]. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to change the brakes in LITTLEFIELD to have the coating in SVENSSON so the brakes operate smoothly. Allowable Subject Matter Claims 4, 8-10 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. The prior art does not teach or suggest wherein the material is configured to form bubbles when evaporating with the other elements in Claim 4. The prior art does not teach or suggest wherein the material is a liquid material or a grease-like material and wherein the material is deposited in at least one reservoir of the vehicle wheel brake with the other elements in Claim 8. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to HENRY Y LIU whose telephone number is (571)270-7018. The examiner can normally be reached 9-5:30 ET. 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, MICHAEL MANSEN can be reached at 5712726608. 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. HENRY Y. LIU Examiner Art Unit 3654 /HENRY Y LIU/ Primary Examiner, Art Unit 3654
Read full office action

Prosecution Timeline

Dec 12, 2023
Application Filed
Feb 05, 2026
Non-Final Rejection — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12595829
SHIM FOR A VEHICLE BRAKE PAD HAVING HEAT DISSIPATION PORTIONS
2y 5m to grant Granted Apr 07, 2026
Patent 12595023
BICYCLE DERAILLEUR AND CHARGING CABLE FOR BICYCLE DERAILLEUR
2y 5m to grant Granted Apr 07, 2026
Patent 12595839
TIMING BELT TENSIONER FOR 3D PRINTER AND 3D PRINTER
2y 5m to grant Granted Apr 07, 2026
Patent 12589411
SYSTEMS FOR ABSORBING FLEXURAL WAVES ACTING UPON A STRUCTURE USING MONOPOLE AND DIPOLE RESONANCE
2y 5m to grant Granted Mar 31, 2026
Patent 12589723
SHEAR-TO-TORQUE GUIDE PIN ASSEMBLY FOR HEAVY-DUTY VEHICLES
2y 5m to grant Granted Mar 31, 2026
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
76%
Grant Probability
88%
With Interview (+12.6%)
2y 8m
Median Time to Grant
Low
PTA Risk
Based on 1315 resolved cases by this examiner. Grant probability derived from career allow rate.

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