Prosecution Insights
Last updated: April 19, 2026
Application No. 18/259,606

Metal Complexes and Methods for the Same

Non-Final OA §102§103
Filed
Jun 28, 2023
Examiner
COUGHLIN, MATTHEW P
Art Unit
1626
Tech Center
1600 — Biotechnology & Organic Chemistry
Assignee
Colgate-Palmolive Company
OA Round
1 (Non-Final)
71%
Grant Probability
Favorable
1-2
OA Rounds
2y 5m
To Grant
84%
With Interview

Examiner Intelligence

Grants 71% — above average
71%
Career Allow Rate
702 granted / 984 resolved
+11.3% vs TC avg
Moderate +12% lift
Without
With
+12.2%
Interview Lift
resolved cases with interview
Typical timeline
2y 5m
Avg Prosecution
48 currently pending
Career history
1032
Total Applications
across all art units

Statute-Specific Performance

§101
1.7%
-38.3% vs TC avg
§103
24.9%
-15.1% vs TC avg
§102
20.4%
-19.6% vs TC avg
§112
30.3%
-9.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 984 resolved cases

Office Action

§102 §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 . DETAILED ACTION Claims 1-15 are pending in the application. Claims 1, 2, 4-7 and 14 are rejected. Claim 9 is objected to. Claims 3, 8, 10-13 and 15 are withdrawn from further consideration. Election/Restrictions Applicant's election with traverse of the species of claim 4 where M is Zn to prosecute the invention of Group I, claims 1-9 and 14, in the reply filed on December 1st, 2025 is acknowledged. The traversal is on the ground(s) that the election is “subject to the Rejoinder provisions of MPEP 821.04.” This is not found persuasive because it does not address the basis for restriction; however, the Examiner acknowledges withdrawn claims will be considered for rejoinder subject to the noted MPEP section. The requirement is still deemed proper and is therefore made FINAL. As per MPEP 803.02, the examiner will determine whether the entire scope of the claims is patentable. Applicants' elected species appears allowable. Therefore, according to MPEP 803.02: should the elected species be found allowable, the examination of the Markush-type claim will be extended. If the examination is extended and a non-elected species found not allowable, the Markush-type claim shall be rejected and claims to the nonelected invention held withdrawn from further consideration. The examination of the Markush-type claims has been extended to include the scope of claim 9, which is free of the prior art, and further extended to include the species cited below under 35 USC 102 and the species of a 1:1 zinc caprylhydroxamic complex, which scope is not allowable. As a non-elected species has been found not allowable, the Markush-type claims have been rejected and claims to the nonelected invention held withdrawn from further consideration. Claims 1, 2, 4, 5, 6, 7, 9 and 14 embrace the elected species and are therefore under examination. Claims 1, 2, 4, 5, 6, 7, 9 and 14 have been examined to the extent that they are readable on the elected embodiment and the above identified nonelected species. Since the nonelected species has been found not allowable, subject matter not embraced by the elected embodiment or the above identified nonelected species is therefore withdrawn from further consideration. Claims 3, 8, 10-13 and 15 are withdrawn from further consideration by the examiner, 37 CFR 1.142(b), as being drawn to a non-elected species or invention. Information Disclosure Statement The Examiner has considered the Information Disclosure Statement(s) filed on June 28th, 2023. 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. Claim(s) 1, 2, 5, 6 and 14 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Hope et al. ECS Trans, 2010, 28, 15-25. Hope et al. teach the preparation of copper n-octanohydroxamate (Figure 4, page 20) and that it is (page 19) “a copper (II) compound with a 1:1 copper:hydroxamate stoichiometry…”. The prior art therefore anticipates instant claims 1, 2 (of about 1:1), 5 and 6. Regarding instant claim 14, MPEP 2111.02 notes: “If the body of a claim fully and intrinsically sets forth all of the limitations of the claimed invention, and the preamble merely states, for example, the purpose or intended use of the invention, rather than any distinct definition of any of the claimed invention’s limitations, then the preamble is not considered a limitation and is of no significance to claim construction. Shoes by Firebug LLC v. Stride Rite Children’s Grp., LLC, 962 F.3d 1362, 2020 USPQ2d 10701 (Fed. Cir. 2020)”. In this situation, the claim only requires the presence of the complex itself, which is taught by the prior art, and the limitation of “personal care” is considered an intended use. Claim(s) 1, 2, 4, 5, 6 and 14 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by CAS Registry No. 108663-65-6, which entered STN on June 13th, 1987. CAS Registry No. 108663-65-6 is drawn to N-hydroxy-octanamide copper complex having the following structure: PNG media_image1.png 105 547 media_image1.png Greyscale . The compound is embraced by formula (2) of claim 4 where M is copper and is further embraced by instant claims 1, 2 (ratio of 2:1), 5 and 6. Regarding instant claim 14, MPEP 2111.02 notes: “If the body of a claim fully and intrinsically sets forth all of the limitations of the claimed invention, and the preamble merely states, for example, the purpose or intended use of the invention, rather than any distinct definition of any of the claimed invention’s limitations, then the preamble is not considered a limitation and is of no significance to claim construction. Shoes by Firebug LLC v. Stride Rite Children’s Grp., LLC, 962 F.3d 1362, 2020 USPQ2d 10701 (Fed. Cir. 2020)”. In this situation, the claim only requires the presence of the complec itself, which is taught by the prior art, and the limitation of “personal care” is considered an intended use. 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. Claim(s) 1, 2, 5, 6, 7 and 14 is/are rejected under 35 U.S.C. 103 as being unpatentable over WO 01/62296 A2 by Jeng et al. Determining the scope and contents of the prior art. (See MPEP § 2141.01) Jeng et al. teach (title) “non-aqueous injectable formulations for extended release of somatotropin”. Jeng et al. further teach that the somatotropin may be in the form of a zinc salt as follows on page 7: PNG media_image2.png 156 684 media_image2.png Greyscale As additional components, the prior art teaches the presence of bioavailability-enhancing constituents (page 14, lines 6-9) and further teach the following examples on page 14 (lines 23-27): PNG media_image3.png 153 678 media_image3.png Greyscale Ascertainment of the differences between the prior art and the claims. (See MPEP § 2141.02) The prior art teaches compositions comprising zinc and suggests embodiments where caprylhydroxamic acid can additionally be present but does not explicitly teach a complex thereof. Finding of prima facie obviousness --- rationale and motivation (See MPEP § 2142-2143) At least since the prior art teaches that the compositions preferably contain zinc and that caprylhydroxamic acid is one exemplary bioavailability-enhancing constituent, a person having ordinary skill in the art in seeking to optimize the prior art compositions and determine optimum components would have been motivated to prepare compositions containing both zinc and caprylhydroxamic acid. Furthermore, at least since the prior art teaches that caprylhydroxamic acid binds zinc, a person having ordinary skill in the art would expect that caprylhydroxamic acid would either bind zinc in the injectable composition itself or be a natural consequence of injecting caprylhydroxamic acid to a biological entity that also contains zinc. Accordingly, a person having ordinary skill in the art would have reasonably expected caprylhydroxamic acid to bind zinc and result in a complex embraced by instant claims 1, 5, 6 and 7. Regarding the limitation of claim 2, a person having ordinary skill in the art would expect that at least one molecule of caprylhydroxamic acid would complex first and meet the limitation of a 1:1 ratio. Regarding instant claim 14, MPEP 2111.02 notes: “If the body of a claim fully and intrinsically sets forth all of the limitations of the claimed invention, and the preamble merely states, for example, the purpose or intended use of the invention, rather than any distinct definition of any of the claimed invention’s limitations, then the preamble is not considered a limitation and is of no significance to claim construction. Shoes by Firebug LLC v. Stride Rite Children’s Grp., LLC, 962 F.3d 1362, 2020 USPQ2d 10701 (Fed. Cir. 2020)”. In this situation, the claim only requires the presence of the complex itself, which is suggested by the prior art, and the limitation of “personal care” is considered an intended use. Allowable Subject Matter Claim 9 is 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. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to MATTHEW P COUGHLIN whose telephone number is (571)270-1311. The examiner can normally be reached Monday - Friday, 10 am - 6 pm EST. 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, Renee Claytor can be reached at 571-272-8394. 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. /MATTHEW P COUGHLIN/Primary Examiner, Art Unit 1626
Read full office action

Prosecution Timeline

Jun 28, 2023
Application Filed
Jan 10, 2026
Non-Final Rejection — §102, §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

1-2
Expected OA Rounds
71%
Grant Probability
84%
With Interview (+12.2%)
2y 5m
Median Time to Grant
Low
PTA Risk
Based on 984 resolved cases by this examiner. Grant probability derived from career allow rate.

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