Prosecution Insights
Last updated: April 18, 2026
Application No. 18/794,406

DISHWASHER APPLIANCE PUMP MOTOR COVER ACOUSTIC TUNING

Non-Final OA §103
Filed
Aug 05, 2024
Examiner
TATE-SIMS, CRISTI J
Art Unit
1711
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Haier US Appliance Solutions Inc.
OA Round
1 (Non-Final)
83%
Grant Probability
Favorable
1-2
OA Rounds
2y 6m
To Grant
98%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allow Rate
586 granted / 706 resolved
+18.0% vs TC avg
Strong +15% interview lift
Without
With
+15.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
24 currently pending
Career history
730
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
56.4%
+16.4% vs TC avg
§102
19.6%
-20.4% vs TC avg
§112
18.7%
-21.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 706 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 . 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. The factual inquiries 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. Claim(s) 1-20 is/are rejected under 35 U.S.C. 103 as being unpatentable over Xu (US 2016/0327048 cited in IDS), and in further view of He (CN 208203594 machine translation cited in IDS). Regarding claim 1, Xu figures 1-4 teach a dishwashing appliance defining a vertical direction, a lateral direction, and a transverse direction, the dishwasher appliance comprising: a tub (104) defining a wash chamber (106); a door (120) mounted to the tub to provide selective access to the wash chamber; a rack (130, 132 rack assembly) mounted within the wash chamber and configured for receipt of articles for cleaning; a spray assembly (144 lower spray assembly, 148 mid-level spray assembly); a supply conduit (152 fluid circulation assembly, 154 circulation conduit) fluidly coupled to the spray assembly; a pump assembly (200) fluidly coupled to the supply conduit, the pump assembly comprising: a housing (210 pump housing) supporting an impeller (202) for rotation within the housing; a motor (204) coupled to the impeller to impart rotation to the impeller; and a cover (212 impeller portion) affixed to the housing (210), the cover comprising a first panel (215 wall segment), a second panel (213 wall segment), and a beam (217 wall segment) extending between the first panel and the second panel, the cover defined between an inner surface and an outer surface, the first panel and the second panel spaced apart by one or more openings (220 outlet) formed through the inner surface and the outer surface of the cover.[0020-37] Xu is silent to the second panel of the cover positioned within the first panel. He is directed towards a dishwasher pump assembly wherein figure 10 teaches a pump cover (8 housing) having a second panel positioned between within the first panel as shown below.[page 4] [AltContent: textbox ()][AltContent: arrow][AltContent: textbox (Protrusions)][AltContent: arrow][AltContent: textbox (Third panel)][AltContent: arrow][AltContent: arrow][AltContent: textbox (rib)] It would have been obvious to one of ordinary skill in the art before the effective filing date of the present invention to provide a second panel positioned within the first panel as taught in He as He suggests such construction is well-known in the art for manufacturing dishwasher pumps. Regarding claim 2, Xu figure 2 teaches an outlet (220) creating a separation in wall segment (217) thereby suggesting the beam extending between the first panel and the second panel is one of a plurality of beams extending between the first panel and the second panel. Regarding claim 3, Xu figure 2 suggests the plurality of beams extend in the lateral direction and/or the transverse direction. Regarding claim 4, Xu figure 2 teaches the beams (217 wall segment) extend from wall segments (215, 213) thereby suggesting the plurality of beams extend in the vertical direction. Regarding claim 5, He figures 3 and 10 suggests a third panel positioned within the first panel, the first panel and the third panel spaced apart by the one or more openings formed through the cover. Regarding claim 6, He figure 10 teaches the second panel includes one or more protrusions (shown in figure above) extending from the outer surface of the cover. Regarding claim 7, He figure 10 suggests the one or more protrusions comprise tabs extending from the second panel. However, He is silent to the one or more protrusions comprise cylindrical tabs extending from the second panel. It would have been obvious to one of ordinary skill in the art before the effective filing date of the present invention to provide cylindrical tabs as a change in shape is obvious absent persuasive evidence that the particular shape is significant.(MPEP 2144.04) Regarding claim 8, modified He figure 10 suggests the cylindrical tabs extending from the second panel are positioned equidistantly apart on the outer surface of the second panel of the cover. Regarding claim 9, figure He figure 10 (reproduced above) suggests the one or more protrusions comprises a plurality of elongated ribs extending from the second panel. Regarding claim 10, He figure 10 (reproduced above) suggests the plurality of elongated ribs extending from the second panel are positioned parallel and equidistantly apart on the outer surface of the second panel of the cover. Regarding claim 11, Xu figures 3-4 teach an appliance pump assembly (200), comprising: a housing (210 pump housing) supporting an impeller (202) for rotation within the housing; a motor (204) coupled to the impeller to impart rotation to the impeller; and a cover (212 impeller portion) affixed to the housing (210), the cover comprising a first panel (215 wall segment), a second panel (213 wall segment), and a beam (217 wall segment) extending between the first panel and the second panel, the cover defined between an inner surface and an outer surface, the first panel and the second panel spaced apart by one or more openings (220 outlet) formed through the inner surface and the outer surface of the cover.[0020-37] Xu is silent to the second panel of the cover positioned within the first panel. He is directed towards a dishwasher pump assembly wherein figure 10 teaches a pump cover (8 housing) having a second panel positioned between within the first panel as shown above.[page 4] It would have been obvious to one of ordinary skill in the art before the effective filing date of the present invention to provide a second panel positioned within the first panel as taught in He as He suggests such construction is well-known in the art for manufacturing dishwasher pumps. Regarding claim 12, Xu figure 2 teaches the appliance pump assembly defines a vertical direction, a lateral direction, and a transverse direction. Xu figure 2 further teaches an outlet (220) creating a separation in wall segment (217) thereby suggesting the beam extending between the first panel and the second panel is one of a plurality of beams extending between the first panel and the second panel. Regarding claim 13, Xu figure 2 suggests the plurality of beams extend in the lateral direction and/or the transverse direction. Regarding claim 14, Xu figure 2 teaches the beams (217 wall segment) extend from wall segments (215, 213) thereby suggesting the plurality of beams extend in the vertical direction. Regarding claim 15, He figures 3 and 10 suggests a third panel positioned within the first panel, the first panel and the third panel spaced apart by the one or more openings formed through the cover. Regarding claim 16, He figure 10 teaches the second panel includes one or more protrusions (shown in figure above) extending from the outer surface of the cover. Regarding claim 17, He figure 10 suggests the one or more protrusions comprise tabs extending from the second panel. However, He is silent to the one or more protrusions comprise cylindrical tabs extending from the second panel. It would have been obvious to one of ordinary skill in the art before the effective filing date of the present invention to provide cylindrical tabs as a change in shape is obvious absent persuasive evidence that the particular shape is significant.(MPEP 2144.04) Regarding claim 18, modified He figure 10 suggests the cylindrical tabs extending from the second panel are positioned equidistantly apart on the outer surface of the second panel of the cover. Regarding claim 19, figure He figure 10 (reproduced above) suggests the one or more protrusions comprises a plurality of elongated ribs extending from the second panel. Regarding claim 20, He figure 10 (reproduced above) suggests the plurality of elongated ribs extending from the second panel are positioned parallel and equidistantly apart on the outer surface of the second panel of the cover. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to CRISTI J TATE-SIMS whose telephone number is (571)272-1722. The examiner can normally be reached M-F 9am-6pm. 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 at 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. CRISTI J. TATE-SIMS Primary Examiner Art Unit 1711 /CRISTI J TATE-SIMS/Primary Examiner, Art Unit 1711
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Prosecution Timeline

Aug 05, 2024
Application Filed
Feb 05, 2026
Non-Final Rejection — §103
Mar 25, 2026
Applicant Interview (Telephonic)
Mar 26, 2026
Examiner Interview Summary
Apr 01, 2026
Response Filed

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12603537
CLOTHES TREATMENT APPARATUS
2y 5m to grant Granted Apr 14, 2026
Patent 12595610
SYSTEM FOR DETECTING THE POSITION OF A WASHING MACHINE SUBWASHER
2y 5m to grant Granted Apr 07, 2026
Patent 12595614
CLOTHES TREATMENT APPARATUS
2y 5m to grant Granted Apr 07, 2026
Patent 12595619
LAUNDRY TREATING APPARATUS
2y 5m to grant Granted Apr 07, 2026
Patent 12593649
APPARATUS AND METHOD FOR TREATING SUBSTRATE
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
83%
Grant Probability
98%
With Interview (+15.2%)
2y 6m
Median Time to Grant
Low
PTA Risk
Based on 706 resolved cases by this examiner. Grant probability derived from career allow rate.

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