Prosecution Insights
Last updated: October 27, 2026
Application No. 18/834,408

FOOD PRODUCT SPOILAGE DETERMINATION METHOD, AND FOOD PRODUCT SPOILAGE DETERMINATION SYSTEM

Non-Final OA §102§103§112
Filed
Jul 30, 2024
Priority
Feb 03, 2022 — JP 2022-015895 +1 more
Examiner
HYUN, PAUL SANG HWA
Art Unit
1796
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Panasonic Housing Solutions Co. Ltd.
OA Round
1 (Non-Final)
70%
Grant Probability
Favorable
1-2
OA Rounds
1y 2m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 70% — above average
70%
Career Allowance Rate
597 granted / 855 resolved
+4.8% vs TC avg
Strong +36% interview lift
Without
With
+36.3%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
50 currently pending
Career history
902
Total Applications
across all art units

Statute-Specific Performance

§101
1.1%
-38.9% vs TC avg
§103
40.8%
+0.8% vs TC avg
§102
21.1%
-18.9% vs TC avg
§112
33.0%
-7.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 855 resolved cases

Office Action

§102 §103 §112
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 . Response to Amendment The preliminary amendment filed on July 30, 2024 is acknowledged. The application will be examined accordingly. Information Disclosure Statement The information disclosure statement (IDS) submitted on July 30, 2024 is being considered by the examiner. Claim Rejections - 35 USC § 112 In the event the determination of the status of the application as subject to AIA (or as subject to pre-AIA ) is incorrect, any correction of the statutory basis for the rejection will not be considered a new ground of rejection if the rationale supporting the rejection would be the same under either status. The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. Claim 19 is rejected under 35 U.S.C. 112(b) as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor regards as the invention. Claim 19 is indefinite because it is unclear what it intends to convey. Specifically, it is unclear what the verb “configures” intends to convey (the system has a configurative effect on a single device?). Claim Rejections - 35 USC § 102 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. Claims 1, 2, 9-14 and 16-20 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Wojnowski et al. (“Wojnowski”) “Portable Electronic Nose Based on Electrochemical Sensors for Food Quality Assessment”. With respect to claim 1, Wojnowski discloses a food product spoilage determination method comprising: trapping a volatile component released from a food product (see Fig. 1 illustrating a sample chamber connected to a series of sensor chambers; see also section 2.2); acquiring, by using a detector (e-nose array), detection data on a plurality of components included in the volatile component (see sections 2.2 and 2.3); and when the food product is spoiled, determining, based on the detection data, a degree of spoilage of the food product (see section 2.3 and abstract). With respect to claim 2, the detection data includes information according to an amount of the plurality of components included in the volatile component (see section 2.3 disclosing calculation of concentration values of volatile compounds). With respect to claims 9 and 10, the detector comprises a gas sensor array including a plurality of sensor elements having sensitivity characteristics different from each other (see Table 1 and section 2.1 disclosing use of sensor arrays). With respect to claim 11, Wojnowski discloses another method, comprising (see section 4.1 directed to using gas chromatography to determine spoilage of meat): trapping a volatile component released from a food product (a gas chromatograph comprises a chamber); acquiring, by using a gas chromatograph, detection data on a plurality of components included in the volatile component; and when the food product is spoiled, determining, based on the detection data, a degree of spoilage of the food product. With respect to claim 12, the determining is performed using a learned model (see abstract disclosing use of SVM; see p. 8 disclosing that SVM was trained). With respect to claim 13, the method is carried out using a system comprising: a detector configured to detect a volatile component released from a food product to output an output signal (see Fig. 1); and a processor, the processor including (see section 2): an acquirer (main board) configured to acquire the output signal and generate, from the output signal, detection data on a plurality of components included in the volatile component; and a determining unit (personal computer with analysis software) configured to use the detection data to determine a degree of spoilage of the food product. With respect to claim 14, the determining unit is configured to make the determination using a learned model (see abstract disclosing use of SVM; see p. 8 disclosing that SVM was trained). With respect to claims 16 and 17, the detector comprises a gas sensor array including a plurality of sensor elements having sensitivity characteristics different from each other (see Table 1). With respect to claim 18, the system comprises a display unit configured to display a result of the determination (see section 2). With respect to claim 19, the spoilage determination system configures a single device (i.e. the e-nose illustrated in Fig. 1). With respect to claim 20, the system further comprises a blower configured to produce a current of air which transports the volatile component to the detector (see section 2.2), wherein the rate of the current is 1 dm3/min (i.e. 1000 mL/min) (see section 3), which falls within the claimed range. 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. 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. Claims 3, 4 and 7 are rejected under 35 U.S.C. 103 as being unpatentable over Wojnowski in view of Koren et al. (“Koren”) (CA 3074183 A1). With respect to claims 3, 4 and 7, while Wojnowski discloses that the food product includes pork and chicken (see section 3), Wojnowski does not disclose detection of any of the claimed volatile components. Nevertheless, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have configured the detector to detect any volatile component associated with spoilage of pork and/or chicken, for example 2-heptanone (see p. 23 of Koren disclosing 2-heptanone is associated with bacterial spoilage of food). By utilizing more data points, the modification would improve the accuracy of the method. Claims 5-7 are rejected under 35 U.S.C. 103 as being unpatentable over Wojnowski in view of Cachelin et al. (“Cachelin”) (US 2022/0026389 A1). With respect to claims 5-7, while Wojnowski discloses that the food product includes pork and chicken (see section 3), Wojnowski does not disclose detection of any of the claimed volatile components. Nevertheless, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have configured the detector to detect any volatile component associated with spoilage of pork and/or chicken, for example styrene (see [0005] of Cachelin disclosing styrene is associated with rotting food). By utilizing more data points, the modification would improve the accuracy of the method. Claim 8 is rejected under 35 U.S.C. 103 as being unpatentable over Wojnowski in view of Koren and Cachelin. With respect to claim 8, while Wojnowski discloses that the food product includes pork and chicken (see section 3), Wojnowski does not disclose detection of any of the claimed volatile components. Nevertheless, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have configured the detector to detect any and all volatile components associated with spoilage of pork and/or chicken, for example 2-heptanone and styrene (see p. 23 of Korean and [0005] of Cachelin disclosing 2-heptanone and styrene are associated with rotting food). By utilizing more data points, the modification would improve the accuracy of the method. Claim 15 is rejected under 35 U.S.C. 103 as being unpatentable over Wojnowski in view of Potyrailo et al. (“Potyrailo”) (US 2012/0235690 A1). With respect to claim 15, while Wojnowski discloses that its system utilizes SVM (see rejection of claim 14 above), which is a type of a learned model, Wojnowski does not disclose the use of discriminant analysis. However, instead of using SVM, it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have configured the system to utilize another algorithm suitable for training artificial intelligence to identify analytes based on chemical signatures, for example discriminant analysis (see [0083] of Potyrailo disclosing that SVM and discriminant analysis are analogous algorithms for training artificial intelligence for the purpose of identifying analytes based on chemical signatures). The modification constitutes substitution of one element for an equivalent for the same purpose, which is considered obvious. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to PAUL S HYUN whose telephone number is (571)272-8559. The examiner can normally be reached M-F 8:30-5:00. 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, Luan Van can be reached at 571-272-8521. 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. /PAUL S HYUN/Primary Examiner, Art Unit 1796
Read full office action

Prosecution Timeline

Jul 30, 2024
Application Filed
Oct 02, 2026
Non-Final Rejection mailed — §102, §103, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12766513
FLUIDIC DEVICES WITH BEAD WELL GEOMETRIES WITH SPATIALLY SEPARATED BEAD RETENTION AND SIGNAL DETECTION SEGMENTS AND RELATED METHODS
3y 0m to grant Granted Oct 20, 2026
Patent 12736555
AUTOMATIC ANALYZER
5y 11m to grant Granted Sep 15, 2026
Patent 12734524
CASSETTE STAND, REACTION UNIT, AND GENETIC TESTING APPARATUS
3y 9m to grant Granted Sep 15, 2026
Patent 12691452
DEVICES FOR IMPROVING SAMPLE PREPARATION AND PROCESSING
3y 8m to grant Granted Jul 28, 2026
Patent 12678795
CARTRIDGES AND RELATED SYSTEMS AND METHODS
3y 6m to grant Granted Jul 14, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

1-2
Expected OA Rounds
70%
Grant Probability
99%
With Interview (+36.3%)
3y 5m (~1y 2m remaining)
Median Time to Grant
Low
PTA Risk
Based on 855 resolved cases by this examiner. Grant probability derived from career allowance 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