Prosecution Insights
Last updated: April 19, 2026
Application No. 17/621,953

A PROCESS FOR PRODUCING CARBON BLACK AND RELATED FURNACE REACTOR

Non-Final OA §102§103§112
Filed
Dec 22, 2021
Examiner
HENDRICKSON, STUART L
Art Unit
1736
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Orion Engineered Carbons GmbH
OA Round
4 (Non-Final)
72%
Grant Probability
Favorable
4-5
OA Rounds
3y 2m
To Grant
80%
With Interview

Examiner Intelligence

Grants 72% — above average
72%
Career Allow Rate
699 granted / 969 resolved
+7.1% vs TC avg
Moderate +8% lift
Without
With
+8.2%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
42 currently pending
Career history
1011
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
65.9%
+25.9% vs TC avg
§102
1.4%
-38.6% vs TC avg
§112
8.0%
-32.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 969 resolved cases

Office Action

§102 §103 §112
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 . 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. Claim Rejections - 35 USC § 112 Claims 13 and 17 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. Claim 13 does not recite any process steps (‘adding to a matrix’), so it is unclear and incomplete. It is not clear if it should be a composition claim. In claim 17, ‘comprise rubber and tires’ is backwards and duplicative. Tires comprise rubber, metallic bead and various metal parts (rims, bolts/screws, etc.) -not the other way around. Prior art rejections: Claims 12 and 13 are rejected under 35 U.S.C. 102a1 as being anticipated by Quitmann et al. 20080219915. Quitmann teaches, especially in table 3 last entry, carbon black having BET of 316.6, STSA of 244.2 (ratio is 1.296) and volatiles of 4.62%. The ASTM test is the same (paras 53-58). For claim 13, page 6 teaches use in rubber. While the process of claim 1 is not taught, no difference is seen since the actual required properties are explicitly recited. Claim 17 is rejected under 35 U.S.C. 103 as being unpatentable over Quitmann. For claim 17, ‘tires’ are not explicitly recited but it is obvious as a common rubber material. Incorporating it into a tire is obvious to impart the desired properties. Applicant's arguments filed 12/10/25 have been fully considered but they are not persuasive. Quitmann does teach an embodiment which meets the claimed properties of the carbon. Applicant should provide on the record the document referred to in specification paragraph 59. The claims not rejected above are allowable based upon the new limitations provided, especially the specific devices and temperatures and the recovery of carbon having properties claimed. /STUART L HENDRICKSON/Primary Examiner, Art Unit 1736
Read full office action

Prosecution Timeline

Dec 22, 2021
Application Filed
Nov 08, 2024
Non-Final Rejection — §102, §103, §112
Feb 14, 2025
Response Filed
Feb 28, 2025
Non-Final Rejection — §102, §103, §112
Jun 06, 2025
Response Filed
Jun 24, 2025
Final Rejection — §102, §103, §112
Sep 26, 2025
Response after Non-Final Action
Oct 23, 2025
Applicant Interview (Telephonic)
Oct 23, 2025
Examiner Interview Summary
Dec 10, 2025
Request for Continued Examination
Dec 11, 2025
Response after Non-Final Action
Dec 12, 2025
Non-Final Rejection — §102, §103, §112
Mar 16, 2026
Response after Non-Final Action
Mar 16, 2026
Response Filed

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12600642
METHODS FOR EXTRACTING LITHIUM FROM BRINES
2y 5m to grant Granted Apr 14, 2026
Patent 12600864
IMPURITY REMOVAL AND MODIFICATION METHOD FOR PYROLYSIS CARBON BLACK OF WASTE TIRES
2y 5m to grant Granted Apr 14, 2026
Patent 12576385
CARBON MOLECULAR SIEVE ADSORBENT MONOLITHS AND METHODS FOR MAKING THE SAME
2y 5m to grant Granted Mar 17, 2026
Patent 12577109
BORON-SULFUR-CODOPED POROUS CARBON MATERIAL AND PREPARATION METHOD AND USE THEREOF
2y 5m to grant Granted Mar 17, 2026
Patent 12577119
METHOD FOR FORMING INSOLUBLE SOLUTE ADDUCTS USING AN ACIDIC MEDIUM
2y 5m to grant Granted Mar 17, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

4-5
Expected OA Rounds
72%
Grant Probability
80%
With Interview (+8.2%)
3y 2m
Median Time to Grant
High
PTA Risk
Based on 969 resolved cases by this examiner. Grant probability derived from career allow rate.

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