Prosecution Insights
Last updated: April 19, 2026
Application No. 19/309,234

SEALING UNIT FOR INSPECTING WATERPROOFNESS OF HALF-FINISHED PRODUCT

Non-Final OA §103
Filed
Aug 25, 2025
Examiner
LEE, GILBERT Y
Art Unit
3675
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Dmc Co. Ltd.
OA Round
1 (Non-Final)
79%
Grant Probability
Favorable
1-2
OA Rounds
2y 6m
To Grant
89%
With Interview

Examiner Intelligence

Grants 79% — above average
79%
Career Allow Rate
1081 granted / 1376 resolved
+26.6% vs TC avg
Moderate +10% lift
Without
With
+10.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
44 currently pending
Career history
1420
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
44.3%
+4.3% vs TC avg
§102
36.9%
-3.1% vs TC avg
§112
13.7%
-26.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1376 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 . Drawings Figures 1 and 2 should be designated by a legend such as --Prior Art-- because only that which is old is illustrated. See MPEP § 608.02(g). Corrected drawings in compliance with 37 CFR 1.121(d) are required in reply to the Office action to avoid abandonment of the application. The replacement sheet(s) should be labeled “Replacement Sheet” in the page header (as per 37 CFR 1.84(c)) so as not to obstruct any portion of the drawing figures. If the changes are not accepted by the examiner, the applicant will be notified and informed of any required corrective action in the next Office action. The objection to the drawings will not be held in abeyance. 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) 1-3 is/are rejected under 35 U.S.C. 103 as being unpatentable over Kim (KR101597691B1) in view of Sung (KR10196072B1). Regarding claim 1, the Kim reference discloses a sealing unit (30) for inspecting waterproofness of a semi-finished product, with the sealing unit coming into close contact with surfaces and holes of a semi-finished product so that a chamber space is formed in order to inspect waterproofness of the semi-finished product having multiple holes formed therein and having components mounted thereon (Abstract), the sealing unit comprising: a body (body of 30); and a sealing pad (31,33) detachably coupled to the body, and provided with an adhesive portion (Para. [0076]) that adheres closely to a surface of the semi-finished product and a protrusion portion (e.g. protrusion portions of 31,33) that tightly seals a hole of the semi-finished product. However, the Kim reference fails to explicitly disclose the protrusion portion is a replaceable sealing block of the sealing pad. The Sung reference, a seal, discloses making a protruding portion (340) be replaceable (Fig. 4). It would have been obvious to one of ordinary skill in the art at the time of filing to make the protruding portion be replaceable in the Kim reference in view of the teachings of the Sung reference in order reduce manufacturing costs by providing replaceable parts. Regarding claim 2, the Kim reference, as modified in claim 1, discloses the body is provided with a fitting projection to which the sealing block is fitted (Sung, Page 6 of translation). Regarding claim 3, the modified Kim reference discloses the invention substantially as claimed in claim 1. However, the modified Kim reference fails to explicitly disclose the sealing block is made of a material harder than that of the sealing pad. It would have been obvious to one having ordinary skill in the art at the time the invention was filed to make the sealing block of a harder material than the sealing pad, since it has been held to be within the general skill of a worker in the art to select a known material on the basis of its suitability for the intended use as a matter of obvious mechanical expedience and in order to ensure that the seal isn’t over pressurized. In re Leshin, 125 USPQ 416. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to GILBERT Y LEE whose telephone number is (571)272-5894. The examiner can normally be reached Monday-Friday 8am-430pm. 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, Christine Mills can be reached at (571)272-8322. 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. /GILBERT Y LEE/Primary Examiner, Art Unit 3675
Read full office action

Prosecution Timeline

Aug 25, 2025
Application Filed
Jan 02, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12595747
METHOD OF MITIGATING VIBRATIONS IN A SEAL COMPONENT
2y 5m to grant Granted Apr 07, 2026
Patent 12590545
METHOD FOR MANUFACTURING SEAL RING, METHOD FOR ASSEMBLING TURBINE, AND TURBINE
2y 5m to grant Granted Mar 31, 2026
Patent 12553520
METAL SEAL FOR DYNAMIC DOWNHOLE ENVIRONMENTS
2y 5m to grant Granted Feb 17, 2026
Patent 12546395
SLIDE RING
2y 5m to grant Granted Feb 10, 2026
Patent 12535013
GAS TURBINE ENGINE WITH CARBON/CARBON COMPOSITE PISTON SEAL
2y 5m to grant Granted Jan 27, 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
79%
Grant Probability
89%
With Interview (+10.4%)
2y 6m
Median Time to Grant
Low
PTA Risk
Based on 1376 resolved cases by this examiner. Grant probability derived from career allow rate.

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