Prosecution Insights
Last updated: July 05, 2026
Application No. 17/860,641

PROCESS OF PREPARING A WET PET FOOD, WET PET FOOD PRODUCED BY THE PROCESS AND USES THEREOF

Non-Final OA §103
Filed
Jul 08, 2022
Priority
Apr 28, 2015 — EU 15165413.4 +2 more
Examiner
GLIMM, CARRIE LYNN STOFFEL
Art Unit
1793
Tech Center
1700 — Chemical & Materials Engineering
Assignee
MARS Incorporated
OA Round
3 (Non-Final)
25%
Grant Probability
At Risk
3-4
OA Rounds
0m
Est. Remaining
42%
With Interview

Examiner Intelligence

Grants only 25% of cases
25%
Career Allowance Rate
18 granted / 72 resolved
-40.0% vs TC avg
Strong +18% interview lift
Without
With
+17.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 9m
Avg Prosecution
29 currently pending
Career history
111
Total Applications
across all art units

Statute-Specific Performance

§103
89.4%
+49.4% vs TC avg
§102
1.7%
-38.3% vs TC avg
§112
2.0%
-38.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 72 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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 02 March 2026 has been entered. Status of the Application Claims 1-15 are pending. The previous 112(a) rejections have been withdrawn in view of applicant’s amendments to the claims. The previous 103 rejections have been modified in view of applicant’s amendments to the claims. 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. Claims 1 and 3-15 are rejected under 35 U.S.C. 103 as being unpatentable over Dixon (US 2012/0171336 A1) in view of Niceron (US 2014/0227386 A1). Regarding claims 1, 14 and 15, Dixon discloses a wet food composition comprising from 90-99% meat emulsion chunks (meaty mass) comprising 1-10% of one or more binders wherein the composition has a moisture content greater than 45% [0031]. Dixon discloses wet food compositions are pet food compositions [0044]. Dixon discloses the meats useful in the invention include real meat of beef, pork, fish turkey, chicken or combinations thereof [0034]. Dixon disclose the meat is ground [0059]. Dixon discloses the binder can be plant proteins, including wheat gluten [0036]. According to the specification wheat gluten is a heat settable protein comprising vegetable protein (Specification [0029]). Dixon discloses the binder can be mixed in the meat emulsion chunks from 1-10% [0037]. Dixon discloses the wet food compositions can further comprise one or more palatability enhancers, including yeast extracts. The palatability enhancers are added to the composition in amounts from 0.01-6% [0039], which encompasses the claimed range of 0.1-3% yeast extract. In the case where the claimed ranges "overlap or lie inside ranges disclosed by the prior art" a prima facie case of obviousness exists. MPEP 2144.05 I. Regarding the quantity of ground animal material in the meaty mass, Dixon discloses an example comprising 74.8 lbs of comminuted chicken chunks in 100 lbs of chicken emulsion product, which is equivalent to 74.8% meat, which falls into the claimed range of 30-80% ground animal material [0068] and Table 2, p6. Regarding the quantity of binder, Dixon discloses the binder can be mixed in the meat emulsion chunks from 1-10% [0037], which falls outside the claimed range of 15-40%. Dixon discloses the amount of moisture and the types and amount of binders can be varied within the given ranges to alter the texture, viscosity, and palatability of the compositions [0042], in other words the amount of binder is a result effective variable. It has long been settled to be no more than routine experimentation for one of ordinary skill in the art to discover an optimum value of a result effective variable. Additionally, differences in concentration or temperature will not support the patentability of subject matter encompassed by the prior art unless there is evidence indicating such concentration or temperature is critical. MPEP 2144.05 II A. As such, the quantity of binder recited in claim 1 is merely an obvious variant of the prior art. Further, attention is invited to In re Levin, 84 USPQ 232 and the cases cited therein, which are considered in point in fact situation of the instant case. At page 234, the Court stated as follows: This court has taken the position that new recipes or formulas for cooking food which involve the addition or elimination of common ingredients, or for treating them in ways which differ from the former practice, do not amount to invention, merely because it is not disclosed that, in the constantly developing art of preparing food, no one else ever did the particular thing upon which the applicant asserts his right to a patent. In all such cases, there is nothing patentable unless the applicant by a proper showing further establishes a coaction or cooperative relationship between the selected ingredients which produces a new, unexpected and useful function. In re Benjamin D. White, 17 C.C.P.A. (Patents) 956, 39 F.2d 974, 5 USPQ 267; In re Mason et al., 33 C.C.P.A. (Patents) 1144, 156 F.2d 189, 70 USPQ 221.Dixon discloses the wet pet food may further include flavors and sweeteners [0046]. Dixon does not disclose a vegetable flour nor a carbonyl source or a Maillard reaction flavor. Niceron, in the field of palatability enhancers for pet food, discloses palatability enhancing composition for pet food [0002]. Niceron discloses a wet petfood with 5% wheat flour (vegetable flour as defined in [0024] of Applicant’s specification) [0207]. Niceron discloses the palatability enhancing composition may comprise Maillard reaction products from about 0.01 to 99 wt% of the palatability enhancing composition [0112] and [0113]. Niceron does not disclose the quantity of Maillard reaction products in the final pet food composition. However, the amount of Maillard reaction products is a result effective variable. Change the amount of Maillard reaction products and you change the palatability of the pet food. It has long been settled to be no more than routine experimentation for one of ordinary skill in the art to discover an optimum value of a result effective variable. Additionally, differences in concentration or temperature will not support the patentability of subject matter encompassed by the prior art unless there is evidence indicating such concentration or temperature is critical. MPEP 2144.05 II A. As such, the quantity of Maillard reaction flavor recited in claim 1 is merely an obvious variant of the prior art. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to combined the wet pet food with palatability enhancers of Dixon with the wet pet food with palatability enhancers of Niceron because both are drawn to pet food ingredients for enhancing palatability of pet foods. It is prima facie obvious to combine two compositions each of which is taught by the prior art to be useful for the same purpose, in order to form a third composition to be used for the very same purpose. MPEP 2144.06 I. Regarding the weight ratio of yeast extract to vegetable flour, Dixon discloses palatability enhancers, including yeast extracts, are added to the composition in amounts from 0.01-6% [0039]. Niceron discloses 5 wt% wheat flour [0207]. These disclosure of yeast extract and vegetable flour encompass the yeast extract to vegetable flour weight ratio of 1:500 to 1:0.83, which encompasses the claim 1 range of at least 1:20, the claim 14 range of 1:20 to 1:12 and the claim 15 range of 1:7 to 1:1. In the case where the claimed ranges "overlap or lie inside ranges disclosed by the prior art" a prima facie case of obviousness exists. In re Wertheim, 541 F.2d 257, 191 USPQ 90 (CCPA 1976); In re Woodruff, 919 F.2d 1575, 16 USPQ2d 1934 (Fed. Cir. 1990). Regarding claims 3 and 13, Dixon discloses the binder can be plant proteins, including wheat gluten [0036]. According to the specification wheat gluten is a heat settable protein comprising vegetable protein (Specification [0029]). Wheat gluten is also considered to meet the claim 13 limitation of a vegetable protein concentrate. Regarding claims 4, 5 and 6; The limitations of claim 1 are considered to be met by the inclusion of a Maillard reaction flavor. However, Dixon discloses the wet pet food composition may further comprise sweeteners [0046]. Dixon does not disclose monosaccharides, disaccharides, or uronic acid. Niceron discloses the moist pet foods and/or the palatability enhancer may contain carbohydrates and the carbohydrate may be dextrose (monosaccharide), fructose (monosaccharide) or sucrose (disaccharide) [0065], [0141], [0147]. Niceron does not disclose the quantity of dextrose, fructose or sucrose in the final pet food. However, the amount of dextrose, fructose and/or sucrose is a result effective variable. Change the amount of dextrose, fructose and/or sucrose and you change the palatability/sweetness of the pet food. It has long been settled to be no more than routine experimentation for one of ordinary skill in the art to discover an optimum value of a result effective variable. Additionally, differences in concentration or temperature will not support the patentability of subject matter encompassed by the prior art unless there is evidence indicating such concentration or temperature is critical. MPEP 2144.05 II A. As such, the quantity of carbonyl source recited in claim 6 is merely an obvious variant of the prior art. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to combined the wet pet food composition of Dixon, which comprises meaty chunks, with the wet pet food of Niceron, which comprises wet pet food comprising fructose, dextrose and/or sucrose since both are drawn to pet foods comprising meaty chunks and palatability enhancement. Regarding claim 7, Dixon discloses the wet pet food composition may further comprise one or more nutritional ingredient such as amino acids. Dixon discloses the nutritional ingredient may be included from 1-20% [0041]. Dixon does not disclose which amino acids are included. Niceron discloses a wet cat food comprising a mixture of amino acids at 1.4 wt% of the cat food (Example 4, pp9-10), which falls within the claimed range of 0.01-2 wt% amino acid compound. Niceron discloses the amino acid mixture in Table 5 (p8) which includes proteinogenic amino acids. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to combined the wet pet food of Dixon, comprising meaty chunks, with the amino acids of Niceron because both are drawn to pet foods and Niceron discloses the amino acids of the present invention increases the overall palatability of the pet food. Regarding the claim language “before the wet pet food product is sterilized,” it is noted the claims are drawn to a wet pet food composition which has not undergone sterilization. Regarding claim 8, Dixon in view of Niceron discloses the wet food product of claim 7 as discussed above. Niceron discloses a wet cat food comprising a mixture of amino acids at 1.4 wt% of the cat food (Example 4, pp9-10) and the amino acid mixture in Table 5 (p8) which includes proteinogenic amino acids. Niceron’s mixture of amino acids at 1.4 wt% of the wet cat food meets the claim 8 limitation of a source of the amino compound in an amounts sufficient to provide a total amount of at least 0.01% of the wet pet food product by weight. Niceron’s mixture of amino acids in Table 5 (p8) meets the claim 8 limitation of said source of the amino compound, Niceron’s amino acid mix, comprising at least 5% of the amino compound by weight dry matter since amino acid mix is 100% of the amino compound by weight. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to combined the wet pet food of Dixon, comprising meaty chunks and amino acids, with the amino acids of Niceron because both are drawn to pet foods enhancing palatability. Regarding claim 9, Niceron discloses the amino acids comprise cysteine, methionine, proline, leucine, phenylalanine and glutamic acid (Table 5, p8). Regarding claim 10, Dixon does not disclose the meaty mass combined with a sauce comprising at least 0.02 % by weight of the Maillard component. Niceron discloses the palatability enhancing composition is 0.01-99 wt% Maillard reaction products [0112] and [0113]. Niceron discloses the palatability enhancing composition can be liquid and the liquid palatability enhancing composition can be applied in a gravy matrix (sauce) [0114] and [0146]. Niceron’s disclosure of 0.01-99 wt% Maillard reaction products in a sauce overlaps with the claimed range of at least 0.02 wt% Maillard component. In the case where the claimed ranges "overlap or lie inside ranges disclosed by the prior art" a prima facie case of obviousness exists. In re Wertheim, 541 F.2d 257, 191 USPQ 90 (CCPA 1976); In re Woodruff, 919 F.2d 1575, 16 USPQ2d 1934 (Fed. Cir. 1990) It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to combined the wet pet food composition of Dixon, which comprises meaty chunks, with the wet pet food of Niceron, which comprises chunks of meat component combined with gravy comprising Maillard reaction products since both are drawn to pet foods comprising meaty chunks and gravy and palatability enhancers. Regarding claim 11, Dixon in view Niceron discloses the wet pet food product of claim 7 as discussed above. Dixon does not disclose the meaty mass combined with a sauce comprising at least 0.02 % by weight of the amino compound. Niceron discloses a chunk in jelly diet where the jelly (sauce) comprises 1.03 wt% of a mixture of amino acids of Table 5 (p8) and [0221]. Niceron’s amino acid mixture at 1.03 wt% of the jelly falls within the claimed range of at least 0.02 wt%. Regarding claim 12, Dixon discloses an example wet pet food with taurine included at 2.33 lbs per 1000 lbs of wet pet food, or 0.233% taurine, which falls within the claimed range of 0.1-1% taurine (Table 1, p6). Claim 2 is rejected under 35 U.S.C. 103 as being unpatentable over Dixon in view of Niceron as evidenced by Mitra Ayu (Maillard Reaction, https://www.ptmitraayu.com/single-post/maillard-reaction-a-flavor-breaking, 2025). Regarding claim 2, it is noted the claims are drawn to a wet pet food product and not the method of making the wet pet food product. Claim 2 recites the compounds that would be produced if the wet pet food product of claim 1 were to undergo sterilizing as described in lines 1-2 of claim 2. The claims, however are drawn to wet pet food product without sterilization. Dixon discloses an example comprising 74.8 lbs of comminuted chicken chunks in 100 lbs of chicken emulsion product, which is equivalent to 74.8% meat, which falls into the claimed range of 30-80% ground animal material [0068] and Table 2, p6. Additionally, Dixon discloses the wet food product of Example 2 and Table 2 is sterilized [0068]. As evidenced by Mitra Ayu, chicken contains ribose as reducing sugars and cysteine as amino acids and produces the Maillard reaction products of 2-furfurylthiol and methionol (p2, 1. Chicken). Therefore, the wet food product comprising chicken, as disclosed by Dixon, would also form the Maillard reaction products of 2-furfurylthiol and methionol. As to the amount of these Maillard reaction products formed after sterilization, the quantity of Maillard reaction products is a result effective variable. Change the amount of chicken (and therefore the amount of ribose and cysteine) and you change the amount of Maillard reaction products, including 2-furfurylthiol and methionol. It has long been settled to be no more than routine experimentation for one of ordinary skill in the art to discover an optimum value of a result effective variable. Additionally, differences in concentration or temperature will not support the patentability of subject matter encompassed by the prior art unless there is evidence indicating such concentration or temperature is critical. MPEP 2144.05 II A. As such, the quantity of 2-furfurylthiol and methionol recited in claim 2 is merely an obvious variant of the prior art. Response to Arguments Applicant's arguments filed 02 March 2026 have been fully considered. To the extent they apply to the above rejection they are not persuasive. Applicant argues the previously relied upon prior art does not disclose the new claim amendments with regards to the vegetable flour and the yeast extract to vegetable flour ratio (claims 1, 14 and 15). Remarks p7. This argument is not persuasive. New prior art of Niceron is relied upon to disclose the vegetable flour and the yeast to vegetable flour ratio. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to CARRIE GLIMM whose telephone number is (571)272-2839. The examiner can normally be reached Monday-Thursday 10:30-6:30 ET. 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, Emily Le can be reached at 571-272-0903. 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. /Michele L Jacobson/Primary Examiner, Art Unit 1793 /C.L.G./Examiner, Art Unit 1793
Read full office action

Prosecution Timeline

Show 1 earlier event
Jun 11, 2025
Non-Final Rejection mailed — §103
Sep 08, 2025
Response Filed
Dec 02, 2025
Final Rejection mailed — §103
Feb 18, 2026
Examiner Interview Summary
Feb 18, 2026
Applicant Interview (Telephonic)
Mar 02, 2026
Request for Continued Examination
Mar 07, 2026
Response after Non-Final Action
May 05, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12653211
FILAMENTS MADE FROM MILK PROTEIN
5y 6m to grant Granted Jun 16, 2026
Patent 12616226
COMPOSITIONS AND METHODS FOR PET FOOD
4y 5m to grant Granted May 05, 2026
Patent 12604919
ALTERNATIVE DAIRY
2y 2m to grant Granted Apr 21, 2026
Patent 12582141
Polypeptides Having Phytase Activity
4y 9m to grant Granted Mar 24, 2026
Patent 12543762
FREEZE DRIED WHOLE ANIMAL PET FOOD
2y 7m to grant Granted Feb 10, 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

3-4
Expected OA Rounds
25%
Grant Probability
42%
With Interview (+17.5%)
3y 9m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 72 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