Prosecution Insights
Last updated: April 19, 2026
Application No. 18/367,130

BINDER COMPOSITION

Final Rejection §DP
Filed
Sep 12, 2023
Examiner
BUIE-HATCHER, NICOLE M
Art Unit
1725
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Rockwool A/S
OA Round
4 (Final)
64%
Grant Probability
Moderate
5-6
OA Rounds
3y 3m
To Grant
91%
With Interview

Examiner Intelligence

Grants 64% of resolved cases
64%
Career Allow Rate
615 granted / 963 resolved
-1.1% vs TC avg
Strong +27% interview lift
Without
With
+26.9%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
4 currently pending
Career history
967
Total Applications
across all art units

Statute-Specific Performance

§101
1.1%
-38.9% vs TC avg
§103
48.8%
+8.8% vs TC avg
§102
15.0%
-25.0% vs TC avg
§112
19.2%
-20.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 963 resolved cases

Office Action

§DP
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 . Claim Status Claims 1-20 are pending. Response to Amendment The amendment filed 9/24/2025 has been entered. Claims 1-7 and 19-20 are pending. Claims 21-25 have been added. The previous claim objections warning is withdrawn in light of Applicant’s amendment. The previous rejections of claims 1-4, 7-8, and 12-14 under 35 USC 102(a)(1) as being anticipated by Gaissmaier (US 2009/0175946 A1), claims 1-6 and 8 under 35 USC 102(a)(1) as being anticipated by Scott (US 2003/0175335 A1), claims 9 and 11 under 35 USC 102(a)(1) as being anticipated by Gaissmaier (US 2009/0175946 A1), claims 9 and 10 under 35 USC 102(a)(1) as being anticipated by Scott (US 2003/0175335 A1), claims 12-14 under 35 USC 102(a)(1) as being anticipated by Scott (US 2003/0175335 A1) are withdrawn in light of Applicant’s amendment. Double Patenting 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 1-7 and 19-25 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-19 of U.S. Patent No. 11,820,116 (Hjelmgard). Although the claims at issue are not identical, they are not patentably distinct from each other because the claims of Hjelmgard recites a method of bonding together surfaces two or more elements at least one of which is a mineral wool element bonded by a mineral wool binder wherein the method comprise using a substantially similar aqueous binder composition. The claims of Hjelmgard recites mineral wool element which includes mineral fibers. In respect to claims 19-20, no step requiring temperature is recited. Response to Arguments Applicant's arguments filed 09/24/2025 have been fully considered but they are not persuasive. The following comment(s) apply: Applicant’s argument that Swift discloses binders for binding fibrous materials such as fiberglass wherein the binders include Maillard reactants, namely a monosaccharide and an amine reactant, which according to claim 1 of Swift is an ammonium salt of polycarboxylic acid. Curing temperatures of 300 to 600℉ (150 to 320 ℃) for preparing fiberglass insulation products are mentioned in [0066] of Swift (page 7) is persuasive. Swift discloses the melanoidin reactant, such as gelatin may be utilized to fabricate uncured, formaldehyde-free matter, such as fibrous materials [0014]. Conclusion THIS ACTION IS MADE FINAL. Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Correspondence Any inquiry concerning this communication or earlier communications from the examiner should be directed to NICOLE M. BUIE-HATCHER whose telephone number is (571)270-3879. The examiner can normally be reached M-F, 9:00 am - 6:00 pm. 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, Srilakshmi K Kumar can be reached at (571)272-7769. 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. /NICOLE M. BUIE-HATCHER/Supervisory Patent Examiner, Art Unit 1725
Read full office action

Prosecution Timeline

Sep 12, 2023
Application Filed
Jul 10, 2024
Non-Final Rejection — §DP
Oct 15, 2024
Response Filed
Jan 27, 2025
Non-Final Rejection — §DP
Apr 29, 2025
Response Filed
Jun 25, 2025
Non-Final Rejection — §DP
Sep 24, 2025
Response Filed
Mar 17, 2026
Final Rejection — §DP (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12567646
BATTERY
2y 5m to grant Granted Mar 03, 2026
Patent 12371530
METHOD FOR PRODUCING POLYCARBONATE RESIN, AND MOLDED BODY
2y 5m to grant Granted Jul 29, 2025
Patent 12227628
TOUGHENED COMPOSITE MATERIALS CAPABLE OF DELAMINATION PROPAGATION RESISTANCE
2y 5m to grant Granted Feb 18, 2025
Patent 12215213
THERMOPLASTIC MOULDING COMPOUND
2y 5m to grant Granted Feb 04, 2025
Patent 12209152
FUNCTIONAL FLUOROPOLYMERS
2y 5m to grant Granted Jan 28, 2025
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
64%
Grant Probability
91%
With Interview (+26.9%)
3y 3m
Median Time to Grant
High
PTA Risk
Based on 963 resolved cases by this examiner. Grant probability derived from career allow rate.

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