Prosecution Insights
Last updated: July 17, 2026
Application No. 18/470,964

COOKING ACCESSORY INCLUDING A SENSOR FOR USE IN A MICROWAVE OVEN

Non-Final OA §103
Filed
Sep 20, 2023
Examiner
VAN, QUANG T
Art Unit
Tech Center
Assignee
Haier US Appliance Solutions Inc.
OA Round
1 (Non-Final)
74%
Grant Probability
Favorable
1-2
OA Rounds
8m
Est. Remaining
82%
With Interview

Examiner Intelligence

Grants 74% — above average
74%
Career Allowance Rate
811 granted / 1095 resolved
+14.1% vs TC avg
Moderate +8% lift
Without
With
+8.4%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
18 currently pending
Career history
1109
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
85.1%
+45.1% vs TC avg
§102
8.7%
-31.3% vs TC avg
§112
2.7%
-37.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1095 resolved cases

Office Action

§103
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 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 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, 5, 7-8, 10-11, 13, 15, 17-18 and 20 is/are rejected under 35 U.S.C. 103 as being unpatentable over Heimerdinger (US 2023/0232507) in view of Bhogal et al (US 11,022,321). Regarding claims 1 and 10-11, Heimerdinger discloses sous vide assembly for use in a microwave oven (100) comprising a cabinet defining a cooking chamber (104); a door (120) mounted to the cabinet for providing selective access to the cooking chamber (104); a microwave heating assembly for generating microwave energy within the cooking chamber (104, par. 0023); a cooking accessory (200) configured for receipt within the cooking chamber (104) for heating one or more items, the cooking accessory (200) comprising an outer tank (202) forming a receiving cavity for containing a microwavable material, wherein the receiving cavity defines a microwave energy impact zone (Figure 3); a first sensor (136) configured for monitoring a temperature of the microwavable material (par. 0026); and a controller (150) in operative communication with the microwave heating assembly and the first sensor (136). However, Heimerdinger does not disclose a first sensor positioned within the cooking accessory and spaced apart from the outer tank outside of the microwave energy impact zone; the controller being configured to perform an operation, the operation comprising: obtaining a temperature set point for the microwavable material; directing the microwave heating assembly at a predetermined power level in response to obtaining the temperature set point; and obtaining a signal from the first sensor after directing the microwave heating assembly at the predetermined power level. Bhogal discloses a first sensor (130, Figure 19) positioned within the cooking accessory and spaced apart from the outer tank outside of the energy impact zone; the controller being configured to perform an operation, the operation comprising: obtaining a temperature set point for the heating material (par. 0047); directing the heating assembly at a predetermined power level in response to obtaining the temperature set point (par. 0047); and obtaining a signal from the first sensor after directing the heating assembly at the predetermined power level (par. 0047). It would have been obvious to one ordinary skill in the art before the effective filing date of the invention was made to utilize in Heimerdinger a first sensor positioned within the cooking accessory and spaced apart from the outer tank outside of the energy impact zone; the controller being configured to perform an operation, the operation comprising: obtaining a temperature set point for the heating material; directing the heating assembly at a predetermined power level in response to obtaining the temperature set point; and obtaining a signal from the first sensor after directing the heating assembly at the predetermined power level as taught by Bhogal in order to provide optimum energy amount to treat the object. Regarding claims 3 and 13, Heimerdinger discloses the cooking accessory comprises an inner tank (204) spaced apart from the outer tank (202) to form a fluid chamber between the inner tank and the outer tank (par. 0032). Regarding claims 5 and 15, Bhogal discloses the operation further comprises: determining a heating pattern based on the obtained signal; and directing the heating assembly according to the determined heating pattern (pr. 0047). Regarding claims 7 and 17, Heimerdinger discloses the microwave heating assembly is a magnetron producing electromagnetic microwave radiation (par. 0022). Regarding claims 8 and 18, Heimerdinger discloses the magnetron is a variable power magnetron, and wherein obtaining a signal from the first sensor comprises: obtaining the signal from the first sensor when the power level of the magnetron is less than a predetermined power level (par. 0024). Regarding claim 20, Heimerdinger/Bhogal discloses substantially all features of the claimed invention including Bhogal discloses cooking appliance accessory and method of use comprising a container (100) comprising an outer tank (110) and defining a receiving cavity for storing a quantity of liquid (Figure 5), the outer tank (110) comprising an inner surface facing the receiving cavity and an outer surface opposite the inner surface (Figure 5); and a sensor (132) coupled to the container (100) and provided within the receiving cavity, wherein the sensor (132) is positioned within the stored quantity of liquid. However, Heimerdinger/Bhogal does not disclose the sensor at least fifteen millimeters away from the inner surface of the outer tank. It would have been obvious to one ordinary skill in the art before the effective filing date of the invention was made to have a sensor at least fifteen millimeters away from the inner surface of the outer tank in order to suit user specific application. Claims 2, 4, 6, 9, 12, 14, 16 and 19 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Any inquiry concerning this communication or earlier communications from the examiner should be directed to QUANG T VAN whose telephone number is (571)272-4789. The examiner can normally be reached Mon-Fri 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, Steven W Crabb can be reached at 571-270-5095. 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. /QUANG T VAN/Primary Examiner, Art Unit 3761 June 17, 2026
Read full office action

Prosecution Timeline

Sep 20, 2023
Application Filed
Jun 22, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12667904
SYSTEM FOR HEATING COMPONENTS FOR CURING AND BONDING MULTI-COMPONENT STRUCTURES
4y 4m to grant Granted Jun 30, 2026
Patent 12671060
MICROWAVE TREATMENT DEVICE
3y 7m to grant Granted Jun 30, 2026
Patent 12672210
ELECTRIC STOVE HAVING SINGLE FREE-ZONE BURNER AND METHOD FOR CONTROLLING SAME
3y 7m to grant Granted Jun 30, 2026
Patent 12666506
MICROWAVE TREATMENT DEVICE
3y 4m to grant Granted Jun 23, 2026
Patent 12666507
AN APPARATUS FOR AND A METHOD OF MICROWAVE HEATING OF ROTATABLE ARTICLES, ESPECIALLY GREEN TYRE BLANKS
3y 10m to grant Granted Jun 23, 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
74%
Grant Probability
82%
With Interview (+8.4%)
3y 5m (~8m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1095 resolved cases by this examiner. Grant probability derived from career allowance rate.

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