Prosecution Insights
Last updated: October 02, 2026
Application No. 18/992,222

PROCESS FOR BASE-CATALYZED REACTION OF SILICONES WITH HYDROTHERMAL OR SUPERCRITICAL WATER

Non-Final OA §112
Filed
Jan 08, 2025
Priority
Jul 13, 2022 — nonprovisional of PCTEP2022069625
Examiner
MCAVOY, ELLEN M
Art Unit
1771
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Wacker Chemie AG
OA Round
1 (Non-Final)
73%
Grant Probability
Favorable
1-2
OA Rounds
10m
Est. Remaining
82%
With Interview

Examiner Intelligence

Grants 73% — above average
73%
Career Allowance Rate
894 granted / 1228 resolved
+7.8% vs TC avg
Moderate +9% lift
Without
With
+8.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
22 currently pending
Career history
1243
Total Applications
across all art units

Statute-Specific Performance

§101
0.9%
-39.1% vs TC avg
§103
61.5%
+21.5% vs TC avg
§102
5.0%
-35.0% vs TC avg
§112
13.1%
-26.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1228 resolved cases

Office Action

§112
DETAILED ACTION This is the initial Office action for application SN 18/992,222 having an effective date of 08 January 2025 and a provisional priority date of 13 July 2022. A preliminary amendment was filed on 08 January 2025. Claims 9-16 are pending. The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . 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 9-16 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. Independent claim 9 is drawn to “A process in which silicone is reacted…”; there is no transitional claim language (e.g., “comprising”, “consisting essentially of”, “consisting of”) in process claim 9 which renders the claim indefinite. Transitional phrases define the scope of the claim with respect to what unrecited additional components or steps, if any, are excluded from the scope of the claim. See MPEP 2111.03. Claim 10 recites “wherein the term silicone encompasses…” (emphasis added). Claim 10 should state “wherein silicone encompasses…”. It is not clear what comprises “compositions comprising organosiloxanes” and how the compositions differ from “polymeric organosiloxanes” cited previously in the claim. Claim 11 recites “the term silicone means silicone rubber” is unclear. The claim should state “silicone is silicone” or “silicone is selected from silicone rubber” or something similar. In claim 12, there is no proper antecedent basis for “the silicones” in independent claim 9. Claim 9 recites “silicone” and not “silicones”. In claim 14, there is no proper antecedent basis for “the temperature” in independent claim 9. Claim 9 does not recite “temperature”. In claim 15, there is no proper antecedent basis for “the pressure” in independent claim 9. Claim 9 does not recite “pressure”. Allowable Subject Matter The closest prior art reference of record is CN 111 498 854 A (Xinjiang Silicon Based New Mat Innovation Center Co LTD) which discloses a supercritical water oxidation method for the preparation of quartz sand. The method comprises uniformly mixing silicon powder and water, placing the formed mixture in a reaction kettle, carrying out heating until the water is in a supercritical state. However, the claimed process differs by reacting silicone, which encompasses oligomeric or polymeric organosiloxanes, which differs from silicon powder disclosed in the prior art. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Daley et al (US 2022/0380682) disclose processes for converting polymers such as silicone rubber [0178] into hydrocarbon products. The polymers may contain less than about 1% total halogens [0180]. McDermott (US 2007/0240740) discloses a method for removing contaminant material from a contaminated article such as silicon wafer comprising using a supercritical fluid. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ELLEN M MCAVOY whose telephone number is (571)272-1451. The examiner can normally be reached Monday-Friday 9:30am - 7:00 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, PREM SINGH can be reached at (571) 272-6381. 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. /ELLEN M MCAVOY/ Primary Examiner, Art Unit 1771 EMcAvoy August 30, 2026
Read full office action

Prosecution Timeline

Jan 08, 2025
Application Filed
Sep 02, 2026
Non-Final Rejection mailed — §112 (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
73%
Grant Probability
82%
With Interview (+8.7%)
2y 7m (~10m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1228 resolved cases by this examiner. Grant probability derived from career allowance rate.

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