Prosecution Insights
Last updated: October 27, 2026
Application No. 18/290,650

PRODUCT COMPRISING A MINERAL WOOL TO BE BLOWN

Non-Final OA §DOUBLEPATENT
Filed
Jan 19, 2024
Priority
Jul 21, 2021 — FR 2107879 +3 more
Examiner
SALVATORE, LYNDA
Art Unit
1789
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Compagnie de Saint-Gobain S.A.
OA Round
3 (Non-Final)
64%
Grant Probability
Moderate
3-4
OA Rounds
9m
Est. Remaining
83%
With Interview

Examiner Intelligence

Grants 64% of resolved cases
64%
Career Allowance Rate
654 granted / 1018 resolved
-0.8% vs TC avg
Strong +19% interview lift
Without
With
+19.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 6m
Avg Prosecution
39 currently pending
Career history
1071
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
54.0%
+14.0% vs TC avg
§102
18.0%
-22.0% vs TC avg
§112
14.6%
-25.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1018 resolved cases

Office Action

§DOUBLEPATENT
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 . Continued Examination Under 37 CFR 1.114 1. A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 9/28/26 has been entered. Response to Amendment 2. Applicant’s amendment and accompanying remarks filed 9/28/26 have been fully considered and entered. Claims 1, 17 and 21 have been amended as requested. Claim 6 is canceled. Applicant’s amendment to claim 17 is found sufficient to overcome the 112 2nd paragraph rejection set forth in the Final Action dated 5/8/26. As such, this rejection is hereby withdrawn. Applicant’s amendment to claim 1 and accompanying arguments are also found sufficient to overcome the obviousness type rejections based on the combination of Dovetta et al., US 20190048499 A1 in view of Babbitt et al., US 5683810 and further in view of Evans et al., US 20170198472 A1. Specifically, the cited combination of prior art does not teach the claimed volume weighted mean diameter of the mineral fibers and the Examiner is of the position that there is no teaching or suggestion to form an obviousness type rejection. As such, these rejections are hereby withdrawn. Double Patenting 3. The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP § 2146 et seq. for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The filing of a terminal disclaimer by itself is not a complete reply to a nonstatutory double patenting (NSDP) rejection. A complete reply requires that the terminal disclaimer be accompanied by a reply requesting reconsideration of the prior Office action. Even where the NSDP rejection is provisional the reply must be complete. See MPEP § 804, subsection I.B.1. For a reply to a non-final Office action, see 37 CFR 1.111(a). For a reply to final Office action, see 37 CFR 1.113(c). A request for reconsideration while not provided for in 37 CFR 1.113(c) may be filed after final for consideration. See MPEP §§ 706.07(e) and 714.13. The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The actual filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/apply/applying-online/eterminal-disclaimer. Claims 1-5 and 7-21 stand provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-20 of copending Application No. 18/290615 (reference application). Although the claims at issue are not identical, they are not patentably distinct from each other because the subject matter sought is encompassed by copending Application No. 18/290615. This is a provisional nonstatutory double patenting rejection because the patentably indistinct claims have not in fact been patented. Claims 1-5 and 7-21 stand provisionally rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-15 of copending Application No. 18/290669 (reference application). Although the claims at issue are not identical, they are not patentably distinct from each other because the subject matter sought is encompassed by copending Application No. 18/290669. This is a provisional nonstatutory double patenting rejection because the patentably indistinct claims have not in fact been patented. Conclusion 4. Any inquiry concerning this communication or earlier communications from the examiner should be directed to LYNDA SALVATORE whose telephone number is (571)272-1482. The examiner can normally be reached M-F. 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, Marla McConnell can be reached at 571-270-7692. 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. /LYNDA SALVATORE/Primary Examiner, Art Unit 1789
Read full office action

Prosecution Timeline

Jan 19, 2024
Application Filed
Sep 30, 2025
Non-Final Rejection mailed — §DOUBLEPATENT
Dec 29, 2025
Response Filed
May 08, 2026
Final Rejection mailed — §DOUBLEPATENT
Aug 27, 2026
Response after Non-Final Action
Sep 28, 2026
Request for Continued Examination
Sep 30, 2026
Response after Non-Final Action
Oct 05, 2026
Non-Final Rejection mailed — §DOUBLEPATENT (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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PREPARATION METHOD OF PHOTOCHROMIC POLYPROPYLENE FIBER
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Patent 12728618
CARBON NANOTUBE BASED SENSOR
6y 10m to grant Granted Sep 08, 2026
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3y 7m to grant Granted Sep 08, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
64%
Grant Probability
83%
With Interview (+19.1%)
3y 6m (~9m remaining)
Median Time to Grant
High
PTA Risk
Based on 1018 resolved cases by this examiner. Grant probability derived from career allowance rate.

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