Prosecution Insights
Last updated: July 17, 2026
Application No. 18/258,341

METHOD FOR PRODUCING A TITANIUM NITRIDE COATING ON THE SURFACE OF A TITANIUM OR TITANIUM ALLOY SUBSTRATE

Non-Final OA §112
Filed
Jun 20, 2023
Priority
Dec 21, 2020 — IT 102020000031628 +1 more
Examiner
WITTENBERG, STEFANIE S
Art Unit
1795
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Brembo S P A
OA Round
1 (Non-Final)
54%
Grant Probability
Moderate
1-2
OA Rounds
0m
Est. Remaining
72%
With Interview

Examiner Intelligence

Grants 54% of resolved cases
54%
Career Allowance Rate
368 granted / 679 resolved
-10.8% vs TC avg
Strong +18% interview lift
Without
With
+18.3%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
50 currently pending
Career history
738
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
84.9%
+44.9% vs TC avg
§102
4.6%
-35.4% vs TC avg
§112
7.2%
-32.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 679 resolved cases

Office Action

§112
DETAILED ACTION Status of Claims Claims 28-51 are pending. Claims 1-27 and 52-54 are cancelled. 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 . Election/Restrictions Applicant’s election without traverse of Group I, claims 28-51 in the reply filed on 26 February 2026 is acknowledged. Claims 52-54 have been cancelled by amendment. Claim Objections Claim 30 is objected to because of the following informalities: “TiN titanium nitride” may be more appropriately written as “titanium nitride (TiN)”. Appropriate correction is required. Claims 41 and 44-45 are objected to because of the following informalities: the “Ethyl” in line 5 does not need to be capitalized (claim 41) and the chemical structures do not need to be capitalized in claims 44-45. Appropriate correction is required. Claim 44 is objected to because of the following informalities: the “immide” of multiple compounds appears to include an extra “m”. Appropriate correction is required. The difference appears to be an Italian version of the chemical compound which includes “immide”. Claim Rejections - 35 USC § 112 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. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 28-51 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Regarding claim 28, the phrase “an ionic liquid at room temperature” is indefinite because it is unclear if the statement of ‘room temperature’ is referring to an ionic liquid which is a liquid at room temperature, the electrolyte temperature being at room temperature or some other scenario. The specification refers to room temperature ionic liquid [0038] and also carrying out the method at room temperature [0026] and therefore it is unclear what temperature and/or compound is required by the claim. Regarding claim 29, the phrase “preferably less than…even more preferably” in reference to the temperature is indefinite because it is unclear what temperature range is required. Moreover, the instant claim is indefinite because claim 29 depends on claim 28. It is unclear what temperature is present of the electrolyte. Regarding claim 34, the phrase “preferably in a pulsed pattern” is indefinite because it is unclear what electric potential is required. Regarding claim 36, the phrase “preferably between…even more preferably” is indefinite because it is unclear what range is required. Regarding claims 37-38, the term “preferably” renders the claims indefinite because it is unclear what range is required. Regarding claim 39, the phrase “regardless of the threshold current density value” is indefinite. Claim 39 depends on claim 32. Claim 32 states “until a predefined threshold electric potential is reached”. It is unclear if the statement of claim 32 in regards to the threshold is satisfied with the addition of the phrasing of claim 39 including regardless of the predefined threshold. The combination of phrases renders claim 39 unclear. Regarding claim 41, the term “preferably” renders the claim indefinite because it is unclear what chemical structure is required. Regarding claim 46, the term “preferably” renders the claim indefinite because it is unclear what counter electrode is required. Claim 47 recites the limitation "the container" in line 2. There is insufficient antecedent basis for this limitation in the claim. Regarding claim 49, the term “preferably” renders the claim indefinite because it is unclear what pre-treatment process is required. Regarding claim 51, the term “preferably” renders the claim indefinite because it is unclear what post-treatment process is required. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Griffiths, L.E., et al. “Low temperature electrochemical synthesis of titanium nitride” Chem. Commun. 2001, 579-580 – liquid ammonia/KNH2 electrolyte at -78℃ - 25℃ Nishikiori et al. “Hydrogen Impermeability of TiN Films and Its Dependence on Nitrogen Concentration at High Temperatures” JES, 148, 1, E52-E59, 2001 – LiCl and KCl along with LiH as hydride ion source electrolyte Any inquiry concerning this communication or earlier communications from the examiner should be directed to STEFANIE S WITTENBERG whose telephone number is (571)270-7594. The examiner can normally be reached Monday - Friday, 7:00 am -4:00 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, 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. /Stefanie S Wittenberg/Primary Examiner, Art Unit 1795
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Prosecution Timeline

Jun 20, 2023
Application Filed
Apr 22, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

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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
54%
Grant Probability
72%
With Interview (+18.3%)
3y 1m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 679 resolved cases by this examiner. Grant probability derived from career allowance rate.

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