Prosecution Insights
Last updated: October 04, 2026
Application No. 17/909,180

ANTIMICROBIAL COMPOSITIONS FOR PET FOOD PRODUCTS

Final Rejection §103
Filed
Sep 02, 2022
Priority
Mar 05, 2020 — EU 20305234.5 +1 more
Examiner
YOO, HONG THI
Art Unit
1792
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Specialites Pet Food
OA Round
4 (Final)
46%
Grant Probability
Moderate
5-6
OA Rounds
0m
Est. Remaining
72%
With Interview

Examiner Intelligence

Grants 46% of resolved cases
46%
Career Allowance Rate
345 granted / 754 resolved
-19.2% vs TC avg
Strong +26% interview lift
Without
With
+26.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 5m
Avg Prosecution
48 currently pending
Career history
796
Total Applications
across all art units

Statute-Specific Performance

§101
2.1%
-37.9% vs TC avg
§103
48.5%
+8.5% vs TC avg
§102
15.2%
-24.8% vs TC avg
§112
28.5%
-11.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 754 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 . Application Status Claim 7-11 are under examination. Claim 1-6 are cancelled. Claim 7-11 are rejected. 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) 7-11 are rejected under 35 U.S.C. 103 as being unpatentable over Cazemier (US 7,727,568). Regarding claim 7, 9, 10 and 11, Cazemier discloses a method of treating microbial infection, includes Salmonella (‘568, col. 2, ln. 42-48; claim 10) in an animal (pet) comprising providing feed composition (pet food composition) with animal fat (pet food ingredient) (‘568, col. 3, ln. 42) and an antimicrobial composition (‘568, claim 1). Cazemier discloses the antimicrobial composition consisting of at least 50% by weight of lactic acid, which is in range with the cited range; and acetic acid, (iso)butyric acid and (iso)valeric acid (‘568, claim 1, claim 11). Cazemier discloses the antimicrobial composition in an amount of maximum of 10% based on the feed composition (pet food composition) (‘568, col. 3, ln. 36-42), which overlaps the cited range. 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 claim 8, Cazemier discloses the lactic acid is between 50% and 99 wt% (‘568, claim 12), which overlaps the cited range. 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). Response to Arguments Applicant asserts “…the antibacterial composition of Cazemier '568 requires an inorganic acid. However, the antimicrobial composition of the claimed invention consists of (i.e., closed language) lactic acid and at least two specific carboxylic acids. Thus, the inorganic acid required by Cazemier '568 is excluded from the claimed antimicrobial composition…”. Applicant's arguments filed May 5, 2026 have been fully considered but they are not persuasive. Attention is directed to MPEP 2111.03, I. wherein [t]he transitional term "comprising", which is synonymous with "including," "containing," or "characterized by," is inclusive or open-ended and does not exclude additional, unrecited elements or method steps. See, e.g., Mars Inc. v. H.J. Heinz Co., 377 F.3d 1369, 1376, 71 USPQ2d 1837, 1843 (Fed. Cir. 2004) ("[L]ike the term ‘comprising,’ the terms ‘containing’ and ‘mixture’ are open-ended."). Invitrogen Corp. v. Biocrest Manufacturing, L.P., 327 F.3d 1364, 1368, 66 USPQ2d 1631, 1634 (Fed. Cir. 2003) ("The transition ‘comprising’ in a method claim indicates that the claim is open-ended and allows for additional steps."); Genentech, Inc. v. Chiron Corp., 112 F.3d 495, 501, 42 USPQ2d 1608, 1613 (Fed. Cir. 1997) ("Comprising" is a term of art used in claim language which means that the named elements are essential, but other elements may be added and still form a construct within the scope of the claim.); Moleculon Research Corp. v. CBS, Inc., 793 F.2d 1261, 229 USPQ 805 (Fed. Cir. 1986); In re Baxter, 656 F.2d 679, 686, 210 USPQ 795, 803 (CCPA 1981); Ex parte Davis, 80 USPQ 448, 450 (Bd. App. 1948) ("comprising" leaves "the claim open for the inclusion of unspecified ingredients even in major amounts"). In Gillette Co. v. Energizer Holdings Inc., 405 F.3d 1367, 1371-73, 74 USPQ2d 1586, 1589-91 (Fed. Cir. 2005), the court held that a claim to "a safety razor blade unit comprising a guard, a cap, and a group of first, second, and third blades" encompasses razors with more than three blades because the transitional phrase "comprising" in the preamble and the phrase "group of" are presumptively open-ended. "The word ‘comprising’ transitioning from the preamble to the body signals that the entire claim is presumptively open-ended." The instant claims recite the method of “comprising” wherein the steps are open-ended to include additional materials/ingredients, hence ingredients such as inorganic acid are excluded from the claimed method. The recitation of “consist of” in the body of the claim does not exclude other ingredients or steps in the claimed method. Attention is directed to MPEP 2111.03, II. [w]hen the phrase "consisting of" appears in a clause of the body of a claim, rather than immediately following the preamble, there is an "exceptionally strong presumption that a claim term set off with ‘consisting of’ is closed to unrecited elements."…However, the "consisting of" phrase limits only the element set forth in that clause; other elements are not excluded from the claim as a whole. Mannesmann Demag Corp. v. Engineered Metal Products Co., 793 F.2d 1279, 230 USPQ 45 (Fed. Cir. 1986). … the court stated that the use of "consists" in the body of the claims did not limit the open-ended "comprising" language in the claims (emphases added). Id. at 1257, 73 USPQ2d at 1367. Conclusion THIS ACTION IS MADE FINAL. 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 HONG THI YOO whose telephone number is (571)270-7093. The examiner can normally be reached M-F, 7AM to 3PM. 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, ERIK KASHNIKOW can be reached at (571)270-3475. 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. /HONG T YOO/Primary Examiner, Art Unit 1792
Read full office action

Prosecution Timeline

Show 4 earlier events
Dec 29, 2025
Response after Non-Final Action
Jan 26, 2026
Request for Continued Examination
Jan 29, 2026
Response after Non-Final Action
Feb 05, 2026
Non-Final Rejection mailed — §103
May 05, 2026
Examiner Interview Summary
May 05, 2026
Applicant Interview (Telephonic)
May 05, 2026
Response Filed
Jul 16, 2026
Final Rejection mailed — §103 (current)

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

5-6
Expected OA Rounds
46%
Grant Probability
72%
With Interview (+26.0%)
3y 5m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 754 resolved cases by this examiner. Grant probability derived from career allowance rate.

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