Prosecution Insights
Last updated: April 17, 2026
Application No. 18/696,231

DEVICES, SYSTEMS, AND METHODS FOR APPLICATION OF FIRE RETARDANT

Non-Final OA §102§103
Filed
Mar 27, 2024
Examiner
TRAN, LEN
Art Unit
3763
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
unknown
OA Round
1 (Non-Final)
11%
Grant Probability
At Risk
1-2
OA Rounds
2y 8m
To Grant
32%
With Interview

Examiner Intelligence

Grants only 11% of cases
11%
Career Allow Rate
12 granted / 113 resolved
-59.4% vs TC avg
Strong +21% interview lift
Without
With
+21.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
18 currently pending
Career history
131
Total Applications
across all art units

Statute-Specific Performance

§103
49.3%
+9.3% vs TC avg
§102
25.0%
-15.0% vs TC avg
§112
22.6%
-17.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 113 resolved cases

Office Action

§102 §103
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 . Election/Restrictions Applicant’s election without traverse of claims 1-14 in the reply filed on 01/07/2026 is acknowledged. Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 1-6, 8, 9, 13, and 14 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Burch (US 2,612,403). As to claim 1, Burch discloses a system comprising: A first fluid inlet A second fluid inlet A fluid outlet A straw coupled to the first fluid inlet A removable container coupled to the first inlet Container can contain fire retardant The hose can be connected to the second inlet (annotated figure below). PNG media_image1.png 534 684 media_image1.png Greyscale As to claim 2, a first valve (62) in fluid communication with the fluid path between the first inlet and the fluid outlet. As to claim 3, a second valve (17) in fluid communication with the fluid path between the second fluid inlet and the fluid outlet. As to claim 4, wherein first valve can control a fire retardant and second valve to control water. As to claim 5, based on the annotated figure above, the first inlet having a first collar and the second collar having a second collar. As to claim 6, the annotated figure above shows the neck of the container has plurality of threads. As to claim 8, the nozzle can discharge the retardant mixture at least 15 feet. As to claim 9, the container can hold between 8 and 192 fluid ounces. As to claim 13, the container can hold any mixture ratio of retardant to water. As to claim 14, an air hole (37) in the nozzle to allow air to enter the container. Claim Rejections - 35 USC § 103 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claim(s) 7 and 10-12 is/are rejected under 35 U.S.C. 103 as being unpatentable over Burch (US ‘403). As to claim 7, Burch discloses a straw, but fail to teach wherein the straw has lands and grooves. However, since Burch discloses a straw, it would have been obvious to one of ordinary skill in the art to include structural features such as lands and grooves inside the straw in order to change the flowrate of the liquid coming out of the straw depending on the design choice. As to claim 10, Burch fails to teach a handle on the container. However, it would have been obvious to one of ordinary skill in the art to include a handle on the container for controlling and handling purposes. As to claims 11 and 12, Burch fails to teach a second container and an adapter to swap between first and second container. However, it would have been obvious to one of ordinary skill in the art to have multiple containers that already have the material in place in order to do a quick swap and not waste time for refilling. In addition, having an adapter is an obvious design choice for accommodating differences sizes. Inquiry Any inquiry concerning this communication or earlier communications from the examiner should be directed to Len Tran whose telephone number is (571)272-1184. The examiner can normally be reached Monday-Friday, 8am - 4pm. 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. 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. /LEN TRAN/Supervisory Patent Examiner, Art Unit 3763
Read full office action

Prosecution Timeline

Mar 27, 2024
Application Filed
Mar 04, 2026
Non-Final Rejection — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12584693
MICROCHANNEL HEAT EXCHANGER
2y 5m to grant Granted Mar 24, 2026
Patent 12551916
CLEANING RECEPTACLE FOR CRYOGENIC FLUID FUELING NOZZLE
2y 5m to grant Granted Feb 17, 2026
Patent 12496477
FIRE SUPPRESSING GAS GENERATORS, SYSTEMS, AND ARRANGEMENTS
2y 5m to grant Granted Dec 16, 2025
Patent 12478993
PAINT-SPRAYING DEVICE FOR PRODUCING A PAINT SPRAY JET AND METHOD FOR VENTING A PAINT CONTAINER
2y 5m to grant Granted Nov 25, 2025
Patent 9545479
SYRINGE ASSIST DEVICE
2y 5m to grant Granted Jan 17, 2017
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

1-2
Expected OA Rounds
11%
Grant Probability
32%
With Interview (+21.3%)
2y 8m
Median Time to Grant
Low
PTA Risk
Based on 113 resolved cases by this examiner. Grant probability derived from career allow rate.

Sign in for Full Analysis

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

Free tier: 3 strategy analyses per month