Prosecution Insights
Last updated: September 17, 2026
Application No. 18/710,980

A METHOD FOR FIREFIGHTING BY USE OF A FIREFIGHTING FOAM

Non-Final OA §112
Filed
May 16, 2024
Priority
Nov 19, 2021 — SE 2151411-2 +1 more
Examiner
DANDRIDGE, CHRISTOPHER R.
Art Unit
3752
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Dafo Fomtec AB
OA Round
3 (Non-Final)
66%
Grant Probability
Favorable
3-4
OA Rounds
10m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 66% — above average
66%
Career Allowance Rate
404 granted / 615 resolved
-4.3% vs TC avg
Strong +36% interview lift
Without
With
+35.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
52 currently pending
Career history
656
Total Applications
across all art units

Statute-Specific Performance

§101
1.0%
-39.0% vs TC avg
§103
52.8%
+12.8% vs TC avg
§102
20.9%
-19.1% vs TC avg
§112
21.6%
-18.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 615 resolved cases

Office Action

§112
DETAILED ACTION 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 7-30 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. The boundaries of claim 7 are unclear. Claim 7 puts forth adding a water-soluble polymer to a water supply stream or adding the polymer to a foam concentrate stream. The method then proceeds with adding a foaming concentrate to the water stream. The bounds are unclear because in the instance where the polymer is added to a foam concentrate stream, there is no provision of a water supply stream. How would one be able to add a foaming concentrate to the water supply stream with no provision of a water supply stream? The method then proceeds with adding the foam concentrate stream to the water supply stream before or after the foam concentrate stream is added to the water supply stream. In the instance where the polymer is added to the water supply stream, there is no provision of a foam concentrate stream. How is the foam concentrate stream added to the water supply stream with no provision of a foam concentrate stream? Is the foaming concentrate a part of the separate foam concentrate stream? If so, that provides for a combination that includes only a water soluble polymer, foam concentrate stream and foaming concentrate. The remaining claims are rejected due to dependency from claim 7. An art rejection is not provided in lieu of the difficulty ascertaining the bounds of the independent claim. Response to Arguments Applicant’s arguments with respect to claim(s) 7 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. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to CHRISTOPHER R. DANDRIDGE whose telephone number is (571)270-1505. The examiner can normally be reached M-T 9am-7pm. 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, Arthur O. Hall can be reached at (571)270-1814. 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. CHRISTOPHER R. DANDRIDGE Primary Examiner Art Unit 3752 /CHRISTOPHER R DANDRIDGE/Primary Examiner, Art Unit 3752
Read full office action

Prosecution Timeline

Show 5 earlier events
Jun 17, 2026
Applicant Interview (Telephonic)
Jun 17, 2026
Examiner Interview Summary
Jun 23, 2026
Interview Requested
Jun 25, 2026
Applicant Interview (Telephonic)
Jun 26, 2026
Examiner Interview Summary
Aug 28, 2026
Request for Continued Examination
Sep 01, 2026
Response after Non-Final Action
Sep 09, 2026
Non-Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12734379
VEHICLE, VEHICLE CONTROL APPARATUS, AND VEHICLE FIRE SUPPRESSING APPARATUS
3y 7m to grant Granted Sep 15, 2026
Patent 12734384
RISER MANIFOLD LAYOUT
3y 5m to grant Granted Sep 15, 2026
Patent 12736218
COMPACT LOW EMISSIONS BURNER NOZZLE USING ADDITIVE MANUFACTURING
2y 10m to grant Granted Sep 15, 2026
Patent 12734542
SPRINKLER STRUCTURE
2y 6m to grant Granted Sep 15, 2026
Patent 12728307
FIRE SUPPRESSION SYSTEM
1y 0m to grant Granted Sep 08, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

3-4
Expected OA Rounds
66%
Grant Probability
99%
With Interview (+35.8%)
3y 2m (~10m remaining)
Median Time to Grant
High
PTA Risk
Based on 615 resolved cases by this examiner. Grant probability derived from career allowance rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month