Prosecution Insights
Last updated: May 28, 2026
Application No. 17/829,687

METHODS AND SYSTEMS FOR FORMING VATERITE FROM CALCINED LIMESTONE USING ELECTRIC KILN

Non-Final OA §112
Filed
Jun 01, 2022
Priority
Jun 30, 2020 — provisional 63/046,239 +1 more
Examiner
HENDRICKSON, STUART L
Art Unit
1736
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Arelac, Inc.
OA Round
5 (Non-Final)
72%
Grant Probability
Favorable
5-6
OA Rounds
0m
Est. Remaining
80%
With Interview

Examiner Intelligence

Grants 72% — above average
72%
Career Allowance Rate
708 granted / 979 resolved
+7.3% vs TC avg
Moderate +8% lift
Without
With
+8.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
29 currently pending
Career history
1017
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
79.8%
+39.8% vs TC avg
§102
0.7%
-39.3% vs TC avg
§112
8.2%
-31.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 979 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 text of those sections of Title 35, U.S. Code not included in this action can be found in a prior Office action. The RCE is accepted. Claims 40, 41 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. In claim 40, ‘a’ group is improper and should be ‘the’ group. Further, the additional materials are vague. For example, ‘finely divided’ is subjective, ‘coloring admixture’ is awkward, ‘damp-proofing admixture’ appears to be the same thing as ‘water repellant’, ‘polozan’ is a mineral aggregate. Claim 41 lacks antecedent and should depend from claim 40. Applicant’s arguments with respect to claim(s) above have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. /STUART L HENDRICKSON/Primary Examiner, Art Unit 1736
Read full office action

Prosecution Timeline

Show 9 earlier events
Aug 01, 2025
Final Rejection mailed — §112
Oct 01, 2025
Response after Non-Final Action
Oct 31, 2025
Request for Continued Examination
Nov 04, 2025
Response after Non-Final Action
Nov 07, 2025
Non-Final Rejection mailed — §112
Feb 06, 2026
Response Filed
Feb 06, 2026
Response after Non-Final Action
May 18, 2026
Response Filed

Precedent Cases

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3y 11m to grant Granted Apr 28, 2026
Patent 12611649
BIOGENIC ACTIVATED CARBON AND METHODS OF MAKING AND USING SAME
2y 4m to grant Granted Apr 28, 2026
Patent 12605692
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4y 2m to grant Granted Apr 21, 2026
Patent 12606442
METHODS AND SYSTEMS FOR PRODUCING SOLID INORGANIC CARBONATE AND BICARBONATE COMPOUNDS
3y 1m to grant Granted Apr 21, 2026
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
72%
Grant Probability
80%
With Interview (+8.0%)
3y 1m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 979 resolved cases by this examiner. Grant probability derived from career allowance rate.

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