Prosecution Insights
Last updated: April 19, 2026
Application No. 18/026,161

PYRAZOLO [3,4-B] PYRIDINE-4-CARBOXAMIDE NITRIFICATION INHIBITOR

Non-Final OA §112
Filed
Mar 14, 2023
Examiner
LANGEL, WAYNE A
Art Unit
1736
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Eurochem Antwerpten
OA Round
1 (Non-Final)
79%
Grant Probability
Favorable
1-2
OA Rounds
2y 7m
To Grant
99%
With Interview

Examiner Intelligence

Grants 79% — above average
79%
Career Allow Rate
1275 granted / 1622 resolved
+13.6% vs TC avg
Strong +23% interview lift
Without
With
+23.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
46 currently pending
Career history
1668
Total Applications
across all art units

Statute-Specific Performance

§101
1.1%
-38.9% vs TC avg
§103
33.6%
-6.4% vs TC avg
§102
2.0%
-38.0% vs TC avg
§112
37.6%
-2.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1622 resolved cases

Office Action

§112
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 . 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 16-30 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. The phrase “can contain” is indefinite since it is unclear whether the term requires that the component is contained, or whether it is optional. For example, it is indefinite as to whether the phrase “hydrocarbon residue which can contain one heteroatom” would require that the hydrocarbon residue contains one heteroatom, or whether the hydrocarbon residue optionally contains one heteroatom. The terms “preferably” and “more preferably” also render the scope of the claims vague and indefinite, since it is unclear whether the limitations following such terms are required, or whether they are optional. In claims 25 and 29, it is indefinite as to what the metes and bounds of a “customary” agrochemical auxiliary agent would be. This application apparently discloses allowable subject matter. The following is a statement of reasons for the indication of allowable subject matter: Nave et al ‘199 (US 2018/0016199) discloses various pyrazole derivatives used as nitrification inhibitors. (See the Abstract and Paragraphs [0012] through [0024].) The compound which appears to be most closely related to those recited in applicant’s claims is the compound depicted in A-7 in Table A of Nave et al ‘199. This compound includes a pyrazole group and a carboxamide substituent. However the ring adjacent the pyrazole ring in compound A-7 is a benzene ring, whereas applicant’s claims require a pyridine ring adjacent the pyrazole ring. There is no teaching, disclosure or suggestion in Nave et al ‘199 to substitute a pyridine ring for the benzene ring in compound A-7. Nor would there be any motivation from the prior art to do so. Accordingly applicant’s claims are not rejected over Nave et al ‘199. Nave et al ‘392 (US 2018/0346392) is made of record for disclosing various pyrazole carbonamides useful as nitrification inhibitors. WO 2019/012380 A1 is made of record for disclosing various pyridine carboxamides and pyrazole carboxamides useful as nitrification inhibitors. Any inquiry concerning this communication or earlier communications from the examiner should be directed to WAYNE A LANGEL whose telephone number is (571) 272-1353. The examiner can normally be reached Monday through Friday from 8:15 am to 4:15 pm. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Anthony Zimmer can be reached at 571-270-3591. 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. /WAYNE A LANGEL/Primary Examiner, Art Unit 1736
Read full office action

Prosecution Timeline

Mar 14, 2023
Application Filed
Oct 16, 2025
Non-Final Rejection — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12599151
BIOCHARS, BIOCHAR EXTRACTS AND BIOCHAR EXTRACTS HAVING SOLUBLE SIGNALING COMPOUNDS AND METHOD FOR CAPTURING MATERIAL EXTRACTED FROM BIOCHAR
2y 5m to grant Granted Apr 14, 2026
Patent 12590043
COMPOSITIONS AND METHODS FOR IMPROVING PLANT GROWTH AND ABIOTIC STRESS TOLERANCE
2y 5m to grant Granted Mar 31, 2026
Patent 12583802
AUTONOMOUS DEVICE FOR IN-FIELD CONVERSION OF BIOMASS INTO BIOCHAR
2y 5m to grant Granted Mar 24, 2026
Patent 12583801
PROCESS FOR PRODUCING FERTILIZER FROM A BIOGAS STREAM
2y 5m to grant Granted Mar 24, 2026
Patent 12577179
Methods and Compositions for Soil Regeneration and Improved Soil Hydrology
2y 5m to grant Granted Mar 17, 2026
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

1-2
Expected OA Rounds
79%
Grant Probability
99%
With Interview (+23.3%)
2y 7m
Median Time to Grant
Low
PTA Risk
Based on 1622 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