Prosecution Insights
Last updated: August 17, 2026
Application No. 18/149,884

COOKING APPLIANCE AND METHODS OF NOTIFICATION

Non-Final OA §103
Filed
Jan 04, 2023
Examiner
AMAR, MARC J
Art Unit
3741
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Haier US Appliance Solutions Inc.
OA Round
2 (Non-Final)
75%
Grant Probability
Favorable
2-3
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 75% — above average
75%
Career Allowance Rate
309 granted / 412 resolved
+5.0% vs TC avg
Strong +38% interview lift
Without
With
+38.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
28 currently pending
Career history
449
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
44.5%
+4.5% vs TC avg
§102
20.2%
-19.8% vs TC avg
§112
32.3%
-7.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 412 resolved cases

Office Action

§103
DETAILED ACTION The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Specification The specification amendment filed 01/04/2026 is acceptable and has been entered. 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) 1-3 and 11-13 is/are rejected under 35 U.S.C. 103 as being unpatentable over US Patent 4,831,239 (Ueda) in view of Pub. No.: US 2020/0234702 A1 (Shin). Regarding claim 1, Ueda discloses (see figs. 1-2) a cooking appliance comprising: a cabinet 1 defining a cooking chamber 7; a door 2 movably mounted (see fig. 2) to the cabinet 1 to selectively restrict access to the cooking chamber (the purpose of a door is to provide access; the door 2 is closed in fig. 2 and must be opened to add and remove food); a control panel 3,4 attached to the cabinet 1; a microwave module mounted within the cabinet, the microwave module 14 (see col. 3, ll. 60-65 wherein magnetron’s emit radiation at microwave frequency; see col. 1, ll. 10-15 and col. 6, ll. 5-10) positioned (see fig. 1) and configured for delivering microwave energy (see col. 3, ll. 60-65 wherein magnetron’s emit radiation at microwave frequency; see col. 1, ll. 10-15 and col. 6, ll. 5-10) into the cooking chamber 7; a support pan 8 mounted within the cooking chamber 7 to receive food items 9 (see col. 1, ll. 15-20) thereon; a presence detection sensor 10 (weight sensor 10 is consistent with applicant par. 37) directed at the support pan 8 and configured to detect one or more food items 9 on the support pan 8 (weight sensor 10 detects weight of food; see col. 1, ll. 15-20); and a controller 5 in operable communication (see fig. 1) with the presence detection sensor 10 and the control panel 3,4, the controller 5 configured to direct an appliance operation comprising: evaluating the presence detection sensor 10 (the measure weight is used control heating; see col. 2, ll. 20-28). Ueda does not explicitly disclose detecting the door in an open position, evaluating the presence detection system in response to detecting the door in the open position; detecting the door in a closed position following evaluation of the presence detection sensor, and directing the control panel according to the evaluation in response to detecting the door in the closed position; wherein evaluating the presence detection sensor comprises determining an item-absence state, and wherein directing the control panel comprises disabling a programmed alert. . It would have been obvious to one of ordinary skill in the art before the effective filing date of the current invention to provide Ueda with the door movably mounted to selectively restrict access to the cooking chamber as taught by Shin in order to facilitate providing a sealed thermally efficient cooking environment (see Shin par. 93). Shin teaches a microwave (heater part 140 can be a magnetron; see fig. 2 and par. 134) cooking appliance 100 and further teaches (see figs. 2-3 and 8B) detecting a door 110 in an open position 613,614 (using sensor 170 connected to controller 185; see par. 138 and fig. 5), evaluating a presence detection system (object detector; see par. 138) in response to detecting the door in the open position 613,614,612; detecting the door in a closed position 613,615 following evaluation of the presence detection sensor 612,613, and directing 615 a control panel 120 according to the evaluation in response to detecting the door 110 in the closed position 613,615 (the controller 185 directs the control panel 120 to display cooking information such as cooking time and temperature; see par. 278); wherein evaluating a presence detection sensor 170 comprises determining an item-absence state 612,613 (it is detected that food is absence from the cooking appliance 100), and wherein directing the control panel 120 comprises disabling 612,YES,615 a programmed (see pars. 171-173 discussing that controller 180,185 is programmed to perform the operations of the disclosure; see fig. 5 showing controller 180,185 receives information regarding the door open/closed state and the presence of food in the cooking appliance from detector 170 as discussed in par. 138; thus controller operations of fig. 8B are programmed including disabling 612,YES,615 alert 614 that is a programmed communication “message” to the user (see par. 276) via display 122 (see pars. 126 and 254) and this is consistent with the discussion of “alert” in applicant disclosure at pars. 58-59) alert 614. It would have been obvious to one of ordinary skill in the art before the effective filing date of the current invention to provide Ueda in view Shin with detecting the door in an open position, evaluating the presence detection system in response to detecting the door in the open position; detecting the door in a closed position following evaluation of the presence detection sensor, and directing the control panel according to the evaluation in response to detecting the door in the closed position; wherein evaluating the presence detection sensor comprises determining an item-absence state, and wherein directing the control panel comprises disabling a programmed alert as taught by Shin in order to facilitate notifying human user (via display or speaker; see Shin pars. 126 and 254) that food has been put in the cooking chamber and the door is open such that the door should be closed in order that cooking of food may proceed (see Shin par. 276) and providing a user experience such that the user may confirm that correct time and temperature has been input by user such that so the food is not undercooked or burned (see pars. 6 and 17) and additionally so that user may confirm that correct time and temperature has been input by user such that so the food is not undercooked or burned (see pars. 6 and 17) in the scenario of 613,YES in fig. 8B of Shin and in order to facilitate providing an error alert to the user in the scenario of 613,NO in fig. 8B wherein the error 614 alert. Regarding claim 11, Ueda discloses (see figs. 1-2) a method of operating a cooking appliance comprising a cabinet 1, a door 2 mounted (see fig. 2) to the cabinet 1, a presence detection sensor 10 (weight sensor 10 is consistent with applicant par. 37), and a control panel 3,4, the method comprising evaluating the presence detection sensor 10 (the measure weight is used control heating; see col. 2, ll. 20-28). Ueda does not explicitly disclose the door movably mounted; detecting the door in an open position, detecting the door in a closed position following evaluation of the presence detection sensor, and directing the control panel according to the evaluation in response to detecting the door in the closed position. Shin teaches (see figs. 2-3) a microwave (heater part 140 can be a magnetron; see par. 134) cooking appliance 100 and further teaches a door 110 movably mounted (see figs. 2-3 and pars. 91-92). It would have been obvious to one of ordinary skill in the art before the effective filing date of the current invention to provide Ueda with the door movably mounted as taught by Shin in order to facilitate providing a sealed thermally efficient cooking environment (see Shin par. 93) when the door is closed and providing an opening to add food to the cooking appliance when the door is open. Shin teaches (see figs. 2-3 and 8B) detecting a door 110 in an open position 613,614 (using sensor 170 connected to controller 185; see par. 138 and fig. 5), evaluating a presence detection system (object detector; see par. 138) in response to detecting the door in the open position 613,614,612; detecting the door in a closed position 613,615 following evaluation of the presence detection sensor 612,613, and directing 615 a control panel 120 according to the evaluation in response to detecting the door 110 in the closed position 613,615 (the controller 185 directs the control panel 120 to display cooking information such as cooking time and temperature; see par. 278); wherein evaluating a presence detection sensor 170 comprises determining an item-absence state 612,613 (it is detected that food is absence from the cooking appliance 100), and wherein directing the control panel 120 comprises disabling 612,YES,615 a programmed (see pars. 171-173 discussing that controller 180,185 is programmed to perform the operations of the disclosure; see fig. 5 showing controller 180,185 receives information regarding the door open/closed state and the presence of food in the cooking appliance from detector 170 as discussed in par. 138; thus controller operations of fig. 8B are programmed including disabling 612,YES,615 alert 614 that is a programmed communication “message” to the user (see par. 276) via display 122 (see pars. 126 and 254) and this is consistent with the discussion of “alert” in applicant disclosure at pars. 58-59) alert 614. It would have been obvious to one of ordinary skill in the art before the effective filing date of the current invention to provide Ueda in view Shin with detecting the door in an open position, evaluating the presence detection system in response to detecting the door in the open position; detecting the door in a closed position following evaluation of the presence detection sensor, and directing the control panel according to the evaluation in response to detecting the door in the closed position; wherein evaluating the presence detection sensor comprises determining an item-absence state, and wherein directing the control panel comprises disabling a programmed alert as taught by Shin in order to facilitate notifying human user (via display or speaker; see Shin pars. 126 and 254) that food has been put in the cooking chamber and the door is open such that the door should be closed in order that cooking of food may proceed (see Shin par. 276) and providing a user experience such that the user may confirm that correct time and temperature has been input by user such that so the food is not undercooked or burned (see pars. 6 and 17) and additionally so that user may confirm that correct time and temperature has been input by user such that so the food is not undercooked or burned (see pars. 6 and 17) in the scenario of 613,YES in fig. 8B of Shin and in order to facilitate providing an error alert to the user in the scenario of 613,NO in fig. 8B wherein the error 614 alert. Regarding claims 2 and 12, Ueda in view of Shin teach the current invention as claimed and discussed above. Ueda further discloses (see fig. 1) (claims 2 and 12) the presence detection sensor 10 is in mechanical communication (see fig. 1) with (claim 2) the or (claim 12) a (claims 2 and 12) support pan 8 (claim 12) within the cabinet 1 of the cooking appliance (the cooking appliance shown in fig. 2). Regarding claims 3 and 13, Ueda in view of Shin teach the current invention as claimed and discussed above. Ueda further discloses (see fig. 1) (claims 3 and 13) the presence detection sensor 10 comprises a force sensor 10 to receive a load (weight of food item 9) thereon. Claim(s) 4, 5, 14 and 15 is/are rejected under 35 U.S.C. 103 as being unpatentable over Ueda in view of Shin as applied to claims 1 and 11 above, and further in view of US 2018/0338354 A1 (Bassill). Regarding claims 4, 5, 14 and 15, Ueda in view of Shin teach the current invention as claimed and discussed above. Ueda does not disclose (claims 4 and 14) wherein the presence detection sensor comprises an optical sensor (claims 5 and 15) wherein the presence detection sensor comprises a camera or a break beam sensor. Bassill teaches (see figs. 5-6) a microwave cooking appliance 58 and further teaches (claims 4 and 14) a presence detection sensor 124 comprises an optical sensor 124 (also with a force sensor 126) (claims 5 and 15) wherein the presence detection sensor 124 comprises a camera 124 or a break beam sensor. It would have been obvious to one of ordinary skill in the art before the effective filing date of the current invention to provide Ueda in view of Shin with (claims 4 and 14) wherein the presence detection sensor comprises an optical sensor (claims 5 and 15) wherein the presence detection sensor comprises a camera as taught by Bassill in order to facilitate improved accuracy regarding presence detection (see Bassill par. 2). Claim(s) 8 and 18 is/are rejected under 35 U.S.C. 103 as being unpatentable over Ueda in view of Shin as applied to claims 1 and 11 above, and further in view of Pub. No. 2009/0236334 A1 (Ben-Shmuel). Regarding claims 8 and 18, Ueda in view of Shin and Ben-Shmuel teach the current invention as claimed and discussed above. Ueda does not disclose wherein evaluating the presence detection sensor comprises detecting a reduction in weight. Ben-Shmuel teaches a cooking appliance (microwave oven; see pars. 4 and 17) and further teaches the general concept of evaluating the presence detection sensor comprises detecting a reduction in weight (see par. 509, middle; heating is not continued if a food object is being maintained at a temperature before serving and the food object has been removed from the oven thus reducing the weight; see weight sensor at par. 505 bottom). It would have been obvious to one of ordinary skill in the art before the effective filing date of the current invention to provide Ueda in view of Shin evaluating the presence detection sensor comprises detecting a reduction in weight as taught by Ben-Shmuel in order to facilitate preventing operation of an unoccupied cooking appliance that may decrease life cycle of such cooking appliance. Response to Arguments Applicant's arguments filed 01/07/2026 have been fully considered but they are not persuasive. Applicant argues the Ueda in view Shin does not teach evaluating a presence detection sensor in response to detecting the door in the open position, and detecting the door in a closed position following evaluation of the presence detection sensor, wherein evaluating the presence detection sensor comprises determining an item-absence state, and wherein directing the control panel comprises disabling a programmed alert. In response Shin teaches evaluating a presence detection system (object detector 170; see par. 138) in response to detecting the door in the open position 613,614,612; detecting the door in a closed position 613,615 following evaluation of the presence detection sensor 612,613, wherein evaluating a presence detection sensor 170 comprises determining an item-absence state 612,613 (it is detected that food is absence from the cooking appliance 100), and wherein directing the control panel 120 comprises disabling 612,YES,615 a programmed (see pars. 171-173 discussing that controller 180,185 is programmed to perform the operations of the disclosure; see fig. 5 showing controller 180,185 receives information regarding the door open/closed state and the presence of food in the cooking appliance from detector 170 as discussed in par. 138; thus controller operations of fig. 8B are programmed including disabling 612,YES,615 alert 614 that is a programmed communication “message” to the user (see par. 276) via display 122 (see pars. 126 and 254) and this is consistent with the discussion of “alert” in applicant disclosure at pars. 58-59) alert 614. This teaching applied Ueda improves user experience as discussed in the claim 1 103 section above for example. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to MARC J AMAR whose telephone number is (571)272-9948. The examiner can normally be reached M-F 9:00-6:00. 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, Devon Kramer can be reached at (571) 272-7118. 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. /MARC AMAR/Examiner, Art Unit 3741 /DEVON C KRAMER/Supervisory Patent Examiner, Art Unit 3741
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Prosecution Timeline

Jan 04, 2023
Application Filed
Nov 03, 2025
Non-Final Rejection mailed — §103
Jan 07, 2026
Response Filed
May 04, 2026
Final Rejection mailed — §103
Jul 02, 2026
Response after Non-Final Action

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Prosecution Projections

2-3
Expected OA Rounds
75%
Grant Probability
99%
With Interview (+38.1%)
3y 0m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 412 resolved cases by this examiner. Grant probability derived from career allowance rate.

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