Prosecution Insights
Last updated: April 19, 2026
Application No. 18/834,103

HIGH-PRESSURE WASHER

Non-Final OA §102§103
Filed
Jul 29, 2024
Examiner
LEE, KEVIN G
Art Unit
1711
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Jong Mo Kim
OA Round
1 (Non-Final)
64%
Grant Probability
Moderate
1-2
OA Rounds
3y 5m
To Grant
90%
With Interview

Examiner Intelligence

Grants 64% of resolved cases
64%
Career Allow Rate
369 granted / 581 resolved
-1.5% vs TC avg
Strong +26% interview lift
Without
With
+26.3%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
32 currently pending
Career history
613
Total Applications
across all art units

Statute-Specific Performance

§103
50.2%
+10.2% vs TC avg
§102
17.7%
-22.3% vs TC avg
§112
27.0%
-13.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 581 resolved cases

Office Action

§102 §103
DETAILED CORRESPONDENCE Acknowledgements This office action is in response to the application filed 7/29/2024. Claims 1-12 are pending and have been examined. 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 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. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claims 1-2, 4 and 10-11 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Epperson et al. (US 6,044,852 A). Re claim 1, Epperson discloses a high-pressure washer (abstract) comprising: a main body (figs. 1-7 ref. 26; figs. 8-11 ref. 120; figs. 12-18 ref. 214); a cover (ref. 22, 122, 128) configured to cover an upper portion of the main body; a washing tank (ref. 32, 132, 234) formed between the main body and the cover; a washing assembly (ref. 46, 146, 240) disposed in the washing tank and comprising a base (see figs. 1-18, base of support structures) in which an object to be washed is disposed and a first washing module (ref. 56, 156, 238, 268) configured to clean the object to be washed; a water storage tank (ref. 40, 140, 282 sump) formed on a lower portion of the washing tank; and a water cleaning module (ref. 78 filter, 178, 286; see also ref. 29 strainer; see laso ref. 308 oil skimmer) disposed in the water storage tank, wherein a washing liquid that washes the object to be washed is returned to the water storage tank, filtered, and reused (see figs. 1-18), and the water cleaning module comprises a suction port (see figs. 12-18 oil skimmer 308) formed at a height corresponding to a water surface level of the washing liquid stored in the water storage tank and a discharge port configured to discharge floating matter introduced into the suction port to outside (chute 320). Re claim 2, a circulation port (see e.g. fig. 5 at ref. 78 to ref. 72) that is in fluid communication with the water storage tank, wherein the circulation port is configured to transport, to a filter device (ref. 70, 78), the washing liquid returned to the water storage tank. Re claim 4, a heater (ref. 80) disposed in the water storage tank and configured to heat the washing liquid. Re claims 10-11, further comprising a second washing module (see figs. 14-15 ref. 238), wherein the second washing module comprises: a spray stem (see figs. 14-15 side arms are extending upward) extending upward in the washing tank and through which a washing liquid moves; a spray branch (cross bar at top of ref. 238 or auxiliary spray tube 268) extending outward from the spray stem; and a spray nozzle (refs. 266, 270) disposed at an end of the spray branch. wherein the spray branch extends in a direction traversing a longitudinal direction of the spray stem (see fig. 14 top branch of ref. 238 or ref. 268 horizontal to the vertical spray stem), and the spray nozzle faces the object to be washed. Claim Rejections - 35 USC § 103 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 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. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. 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. The factual inquiries set forth in Graham v. John Deere Co., 383 U.S. 1, 148 USPQ 459 (1966), that are applied for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claims 3 and 12 are rejected under 35 U.S.C. 103 as being unpatentable over Epperson et al. (US 6,044,852 A), as applied above, in view of Sheldon (US 5,398,708 A). Re claim 3, Epperson discloses as shown above including a control module (ref. 18) and a water cleaning module, but does not disclose wherein the control module is configured to operate the water cleaning module when a predetermined time or a predetermined number of cleaning cycles is reached. However, Sheldon discloses it is very old and well-known in the parts cleaning machine art (title) to provide a timer to allow the filter (ref. 150, see fig. 1) and skimmer (ref. 200, see fig. 3) to operate for a prolonged time period so that fluid can be cleaned (col. 4 lines 1-5, col. 10 lines 3-8). At the time of filing, it would have been obvious to one of ordinary skill in the art to modify the control module of Epperson to further operate the water cleaning module when a predetermined time is reached, as suggested by Sheldon, in order to remove contaminants from the cleaning fluid. Re claim 12, Sheldon further discloses a jig (ref. 64) configured to fix the object to be washed to the base. Claims 5-9 are rejected under 35 U.S.C. 103 as being unpatentable over Epperson et al. (US 6,044,852 A), as applied above, in view of TWI700132B (machine translation attached). Re claims 5-9, Epperson discloses as shown above including wherein the first washing module comprises: a washing liquid supply pipe (ref. 56, 156, 238, 268) and rotating nozzles (see fig. 14), but does not teach a rotating disk comprising a first surface perpendicular to a longitudinal direction of the washing liquid supply pipe, a second surface formed on a side opposite to the first surface, and a side surface formed between the first surface and the second surface; a plurality of cleaning nozzles formed parallel to a rotation shaft of the rotating disk; and a plurality of propulsion nozzles formed to be inclined to the rotation shaft of the rotating disk, and the rotating disk rotates around the washing liquid supply pipe due to spraying from the plurality of propulsion nozzles. However, TWI700132B teaches it is well-known in the cleaning equipment nozzle art (abstract) to provide a first washing module comprising a washing liquid supply pipe (, see figs. 1-6, ref. 112), a rotating disk (upper disk ref. 13 and ref. 20) comprising a first surface (top) perpendicular to a longitudinal direction of the washing liquid supply pipe, a second surface (bottom) formed on a side opposite to the first surface, and a side surface formed between the first surface and the second surface; a plurality of cleaning nozzles (ref. 40, regarding “plurality” the mere duplication of parallel nozzles is prima facie obvious, moreso in view of Epperson having multiple parallel nozzles in the vertical direction, see Epperson fig. 14. See MPEP 2144.04(VI)(B) Duplication of Parts) formed parallel to a rotation shaft of the rotating disk; and a plurality of propulsion nozzles (ref. 33) formed to be inclined to the rotation shaft of the rotating disk, and the rotating disk rotates around the washing liquid supply pipe due to spraying from the plurality of propulsion nozzle (see fig. 4). At the time of filing, it would have been obvious to one of ordinary skill in the art to modify the first washing module of Epperson to further include a rotary cleaning nozzle, as suggested by TWI700132B, in order to clean all gaps with no deadzones. Re claims 5-9, wherein the washing liquid supply pipe is formed perpendicular to the base (see fig 1 and 4; wherein the plurality of cleaning nozzles extends in a vertical direction from the second surface of the rotating disk (see figs. 2 and 4); wherein the plurality of propulsion nozzles is disposed on the side surface of the rotating disk and formed to be inclined to the rotation shaft of the rotating disk (see figs. 1-2 and 4); Regarding “wherein angles formed between the plurality of propulsion nozzles and the rotation shaft are adjustable”, making components adjustable or separable is prima facie obvious to one of ordinary skill in the art to enable optimization or modification depending on the object being cleaned. See MPEP 2144.04(V)(C) Making Separable. Here, fig. 5 shows joints 23 for spray group 30 that could be rotatable to enable adjustment of the angle for speed or coverage. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. US 5499643 A note parts washer with overflow filtration and plurality of spray nozzles. Any inquiry concerning this communication or earlier communications from the examiner should be directed to KEVIN LEE whose telephone number is (571)270-7299. The examiner can normally be reached M-F 8:30am to 6:30pm. 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, Michael Barr can be reached on 571-272-1414. 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. KEVIN G. LEE Examiner Art Unit 1711 /KEVIN G LEE/Examiner, Art Unit 1711
Read full office action

Prosecution Timeline

Jul 29, 2024
Application Filed
Jan 10, 2026
Non-Final Rejection — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12588798
DISHWASHER
2y 5m to grant Granted Mar 31, 2026
Patent 12588796
A DOOR OPENER FOR A DOMESTIC APPLIANCE
2y 5m to grant Granted Mar 31, 2026
Patent 12584258
LAUNDRY PROCESSING APPARATUS
2y 5m to grant Granted Mar 24, 2026
Patent 12584637
HOUSEHOLD APPLIANCE
2y 5m to grant Granted Mar 24, 2026
Patent 12532961
PAINT BRUSH AND ROLLER WASHER
2y 5m to grant Granted Jan 27, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

1-2
Expected OA Rounds
64%
Grant Probability
90%
With Interview (+26.3%)
3y 5m
Median Time to Grant
Low
PTA Risk
Based on 581 resolved cases by this examiner. Grant probability derived from career allow rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month