Prosecution Insights
Last updated: April 17, 2026
Application No. 18/469,178

WASHING BRUSH

Non-Final OA §102
Filed
Sep 18, 2023
Examiner
KARLS, SHAY LYNN
Art Unit
3723
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
unknown
OA Round
1 (Non-Final)
69%
Grant Probability
Favorable
1-2
OA Rounds
2y 8m
To Grant
96%
With Interview

Examiner Intelligence

Grants 69% — above average
69%
Career Allow Rate
903 granted / 1308 resolved
-1.0% vs TC avg
Strong +27% interview lift
Without
With
+26.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
53 currently pending
Career history
1361
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
46.7%
+6.7% vs TC avg
§102
34.0%
-6.0% vs TC avg
§112
14.5%
-25.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1308 resolved cases

Office Action

§102
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 § 102 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. 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 is/are rejected under 35 U.S.C. 102a1 as being anticipated by Noble (PGPub 20080066244). Noble teaches a brush comprising: a line of washing bristles (120) planted on a brush head in a straight line along a length direction of the head (112; figure 3b) with predetermined intervals, wherein an end part of each of the washing bristles is bent outward (150; figure 14a) in a width direction of the head at a certain angle. With regards to claim 2, a plurality of the lines of washing bristles (figure 4 and 6c; show that the bent bristles can be on both sides of the head) are provided on the brush head and the end parts of the lines of washing bristles are bent in a way such that the end parts of the washing bristles in the same line are bent in the same direction and the end parts of the washing bristles in different lines are bent in the same direction or in different directions. With regards to claim 3, washing bristles form a bristle bundle at each planting spot by a predetermined number (any number) of washing bristles being planted at each planting spot. Claim(s) 1-3 is/are rejected under 35 U.S.C. 102a1 as being anticipated by Park (KR 100806750). Park teaches a brush comprising: a line of washing bristles (10) planted on a brush head in a straight line along a length direction of the head (30; figure 7) with predetermined intervals, wherein an end part of each of the washing bristles is bent outward (figure 3) in a width direction of the head at a certain angle. With regards to claim 2, a plurality of the lines of washing bristles (figure 3) are provided on the brush head and the end parts of the lines of washing bristles are bent in a way such that the end parts of the washing bristles in the same line are bent in the same direction and the end parts of the washing bristles in different lines are bent in the same direction or in different directions (figure 3 shows several lines, all having the bent portion in the same direction). With regards to claim 3, washing bristles form a bristle bundle at each planting spot by a predetermined number (any number) of washing bristles being planted at each planting spot. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to SHAY LYNN KARLS whose telephone number is (571)272-1268. The examiner can normally be reached M-Th (6am-5pm). 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, Monica Carter can be reached at 571-272-4475. 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. /SHAY KARLS/Primary Examiner, Art Unit 3723
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Prosecution Timeline

Sep 18, 2023
Application Filed
Oct 03, 2025
Non-Final Rejection — §102 (current)

Precedent Cases

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2y 5m to grant Granted Mar 17, 2026
Patent 12575662
TOOTHBRUSH WITH REPLACEABLE BRUSH HEAD
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ORAL CARE SYSTEM, IMPLEMENT, AND/OR KIT
2y 5m to grant Granted Mar 10, 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
69%
Grant Probability
96%
With Interview (+26.6%)
2y 8m
Median Time to Grant
Low
PTA Risk
Based on 1308 resolved cases by this examiner. Grant probability derived from career allow rate.

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