Prosecution Insights
Last updated: April 18, 2026
Application No. 18/001,567

NON-HYGROSCOPIC CURING AGENTS IN A GRANULAR FORM

Final Rejection §103
Filed
Dec 12, 2022
Examiner
DUBOIS, PHILIP A
Art Unit
1791
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Nutriventia Private Limited
OA Round
2 (Final)
25%
Grant Probability
At Risk
3-4
OA Rounds
5y 5m
To Grant
50%
With Interview

Examiner Intelligence

Grants only 25% of cases
25%
Career Allow Rate
126 granted / 513 resolved
-40.4% vs TC avg
Strong +26% interview lift
Without
With
+25.7%
Interview Lift
resolved cases with interview
Typical timeline
5y 5m
Avg Prosecution
82 currently pending
Career history
595
Total Applications
across all art units

Statute-Specific Performance

§101
2.0%
-38.0% vs TC avg
§103
59.4%
+19.4% vs TC avg
§102
10.9%
-29.1% vs TC avg
§112
23.3%
-16.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 513 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 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 1-5, 7-9, 12-13 and 15 are rejected under 35 U.S.C. 103 as being unpatentable over United States Patent No. 4,463,026 (CHANDLER) in view of McKeith, A, Alternative Curing, TRADITIONAL VS “NATURAL” CURING, Factsheet Pork Information Gateway, accessed at https://meatscience.org/docs/default-source/publications-resources/fact-sheets/alternative-curing1.pdf?sfvrsn=4030ff77_5 (2014) (MCKEITH). PNG media_image1.png 207 630 media_image1.png Greyscale CHANDLER teaches a curing salt comprising a precipitated Silica and a diluent (col. 4, lines 40-50). The silica is present to allow free flow of the product and would naturally create a non-hygroscopic environment. CHANDLER is silent as to adding a celery juice concentrate. MCKEITH teaches that celery juice concentrate is an excellent curing agent as it naturally contains nitrites (pg. 3, paragraph 2). MCKEITH teaches that vegetable powders such as celery juice powder has can contains nitrites in amounts more than 25,000 ppm (pg. 3, paragraph 2). The range taught by McKeith overlaps and thereby renders obvious the claimed range. It would have been obvious to add the celery juice concentrate of MCKEITH to CHANDLER, as MCKEITH teaches celery juice, a naturally occurring nitrate source, when combined with a starter culture, is one of the most commonly used sources of nitrite in natural and organic meat products (pg. 3, paragraph 2). PNG media_image2.png 85 628 media_image2.png Greyscale CHANDLER does not teach the nitrite content. However, CHANDLER does teach that nitrites and/or nitrates can be added (col. 6, lines 55-68). However, MCKEITH teaches that vegetable powders such as celery juice powder has can contains nitrites in amounts more than 25,000 ppm (pg. 3, paragraph 2). The range taught by McKeith overlaps and thereby renders obvious the claimed range. PNG media_image3.png 335 598 media_image3.png Greyscale As to claims 3-5, CHANDLER teaches a maximum level of 2 percent, the concentration of the silica particles is generally controlled at a level of 2 percent by weight to levels as low as about 1 percent by weight. (col. 2, lines 15-45). However, it would have been obvious to vary the amount of silica based on the amount needed to maintain the flow of the product. CHANDLER teaches that the particulate silica flow agent is added to assure good flowability (col. 4, lines 25-42). PNG media_image4.png 209 593 media_image4.png Greyscale As to claims 7 and 8, CHANDLER teaches inorganic metal salts in the form of magnesium silicate (col. 6, lines 5-25). It would have been obvious to one skilled in the to the citrate salt form of magnesium. PNG media_image5.png 109 634 media_image5.png Greyscale CHANDLER teaches that silicon dioxide is added as a flow agent and can range from 0 to 0.30 % (col. 5, lines 40-44, Table 1). However, it would have been obvious to vary the amount of silicon dioxide based on the amount needed to keep the powder free flowing. PNG media_image6.png 101 606 media_image6.png Greyscale Chandler teaches the addition of lecithin which does have emulsification and hydrophobic properties and can be added to oil (col. 6, lines 30-50). It would have been obvious to vary the amount of lecithin based on the needed amount of emulsification properties. PNG media_image7.png 52 576 media_image7.png Greyscale CHANDLER teaches that silica particles can be added with a bulk density of about 3 to about 15 pounds per cubic foot (i.e., 0.05 g/cc to 0.24 g/cc) but silent as the overall bulk density (col. 6, lines 20-38). It would have been obvious to one skilled in the art to vary the bulk density to maintain a stable dispersion (col. 5, liens 20-50). PNG media_image8.png 121 673 media_image8.png Greyscale CHANDLER teaches a free flowing product with ingredients that remain uniformly distributed (col. 4, lines 35-45, col. 8, lines 20-25). It would have been obvious to provide a composition that does not absorb moisture and is easily reconstituted so that the product continues to flow freely to make sure that the constituents in the mixture remain uniformly distributed. Moreover, applicant has chosen to use parameters that cannot be measured by the Office, for the purpose of prior art comparison, because the office is not equipped to manufacture prior art products and compare them for patentability. Where the claimed and prior art products are identical or substantially identical in structure or composition, or are produced by identical or substantially identical processes, a prima facie case of either anticipation or obviousness has been established. In re Best, 562 F.2d 1252, 1255, 195 USPQ 430, 433 (CCPA 1977). "When the PTO shows a sound basis for believing that the products of the applicant and the prior art are the same, the applicant has the burden of showing that they are not." In re Spada, 911F.2d 705, 709, 15 USPQ2d 1655, 1658 (Fed. Cir. 1990). Therefore, as a prima facia case of obviousness has been properly established, the burden is shifted to the applicant to show that the prior art product is different. Claims 6 and 11 are rejected under 35 U.S.C. 103 as being unpatentable over CHANDLER and MCKEITH as applied to claim 1 above, and further in view of United States Patent No. 3,852,487 (VAN WERVEN). PNG media_image9.png 93 605 media_image9.png Greyscale PNG media_image10.png 106 610 media_image10.png Greyscale The references above are both directed to curing agents but silent as to adding binder. VAN WERVEN teaches providing cured meat products with binders (col. 7, lines 15-30). It would have been obvious to vary the amount of binder based on the desired texture and reduce fluid loss. It would have been obvious to add cellulosic materials to the references above, as they help provide texture and reduce fluid loss to the product. Response to Arguments Applicant's arguments filed 12/12/2055 have been fully considered but they are not persuasive. The indefiniteness rejection is withdrawn in view of the changes to the claims. As to the obviousness rejection, the applicant argues that Chandler does not disclose or suggest a composition that includes a celery juice concentrate. Rather, Chandler is focused on how to provide dl-alpha-tocopherol in a curing material that more uniformly disperses the dl-alpha-tocopherol over meat to be cured. It is also argued that McKeith does not cure the deficiencies of Chandler. McKeith discusses the use of celery juice concentrate in meat curing processes. However, McKeith does not indicate that there was any reason to alter the celery juice concentrate, let alone with the composition described in Chandler. It is only with the improper use of hindsight that one skilled in the art would arrive at the presently claimed invention. In response to applicant's arguments against the references individually, one cannot show nonobviousness by attacking references individually where the rejections are based on combinations of references. See In re Keller, 642 F.2d 413, 208 USPQ 871 (CCPA 1981); In re Merck & Co., 800 F.2d 1091, 231 USPQ 375 (Fed. Cir. 1986). Additionally, both McKeith and Chandler are directed to curing agents/salts. CHANDLER teaches a curing salt comprising a precipitated Silica and a diluent (col. 4, lines 40-50). MCKEITH teaches that celery juice concentrate is an excellent curing agent as it naturally contains nitrites (pg. 3, paragraph 2). “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.... [T]he idea of combining them flows logically from their having been individually taught in the prior art.” In re Kerkhoven, 626 F.2d 846, 850, 205 USPQ 1069, 1072 (CCPA 1980) (citations omitted) (Claims to a process of preparing a spray-dried detergent by mixing together two conventional spray-dried detergents were held to be prima facie obvious.). See also In re Crockett, 279 F.2d 274, 126 USPQ 186 (CCPA 1960) (Claims directed to a method and material for treating cast iron using a mixture comprising calcium carbide and magnesium oxide were held unpatentable over prior art disclosures that the aforementioned components individually promote the formation of a nodular structure in cast iron.); and Ex parte Quadranti, 25 USPQ2d 1071 (Bd. Pat. App. & Inter. 1992) (mixture of two known herbicides held prima facie obvious). ** 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 PHILIP A DUBOIS whose telephone number is (571)272-6107. The examiner can normally be reached M-F, 9:30-6:00p. 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, Nikki Dees can be reached at 571-270-3435. 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. /PHILIP A DUBOIS/Examiner, Art Unit 1791 /Nikki H. Dees/Supervisory Patent Examiner, Art Unit 1791
Read full office action

Prosecution Timeline

Dec 12, 2022
Application Filed
Aug 15, 2025
Non-Final Rejection — §103
Dec 12, 2025
Response Filed
Apr 04, 2026
Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12600930
Process for Aging Distilled Spirits
2y 5m to grant Granted Apr 14, 2026
Patent 12543755
COMPOSITION COMPRISING AN OIL PHASE
2y 5m to grant Granted Feb 10, 2026
Patent 12501919
A METHOD FOR INCREASING ANTHOCYANIN CONTENT IN CARROTS
2y 5m to grant Granted Dec 23, 2025
Patent 12490752
METHODS AND SYSTEMS OF MAKING CHEESE FORMS
2y 5m to grant Granted Dec 09, 2025
Patent 12426608
COMPOSITION COMPRISING AN OIL PHASE
2y 5m to grant Granted Sep 30, 2025
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

3-4
Expected OA Rounds
25%
Grant Probability
50%
With Interview (+25.7%)
5y 5m
Median Time to Grant
Moderate
PTA Risk
Based on 513 resolved cases by this examiner. Grant probability derived from career allow 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