Prosecution Insights
Last updated: April 19, 2026
Application No. 17/998,196

METHOD, COMPOSITION AND SYSTEM FOR GENERATING AN OXYGEN-FLOW

Non-Final OA §112
Filed
Nov 08, 2022
Examiner
OYER, ANDREW J
Art Unit
1767
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Dacelo B V
OA Round
1 (Non-Final)
79%
Grant Probability
Favorable
1-2
OA Rounds
2y 7m
To Grant
96%
With Interview

Examiner Intelligence

Grants 79% — above average
79%
Career Allow Rate
467 granted / 589 resolved
+14.3% vs TC avg
Strong +16% interview lift
Without
With
+16.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
32 currently pending
Career history
621
Total Applications
across all art units

Statute-Specific Performance

§101
1.8%
-38.2% vs TC avg
§103
36.2%
-3.8% vs TC avg
§102
20.8%
-19.2% vs TC avg
§112
24.5%
-15.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 589 resolved cases

Office Action

§112
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 . Election/Restrictions Claims 6-17 and 21 are withdrawn from further consideration pursuant to 37 CFR 1.142(b), as being drawn to a nonelected inventions, there being no allowable generic or linking claim. Applicant timely traversed the restriction (election) requirement in the reply filed on 29 December 2025. Applicant's election with traverse of Group I, claims 1-5 and 18-20 in the reply filed on 29 December 2025 is acknowledged. The traversal is on the ground(s) that the ISA identified all of the claims as identifiable over Zhang, the reference used to show lack of a special technical feature. This is not found persuasive because the USPTO is not bound to the decisions made by the ISA. As no additional arguments were presented to dispute the special technical feature from the restriction the restriction has been maintained. The requirement is still deemed proper and is therefore made FINAL. Information Disclosure Statement The information disclosure statement (IDS) submitted on 10 February 2023 was filed. The submission is in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement has been considered by the Office. 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 1-5 and 18-20 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. As to Claim 1: The claim includes a Markush group for the oxygen generating component with the language “wherein the oxygen generating component is selected from the group of alkali chlorates and alkali perchlorates, alkali oxides and alkali superoxides”. It is unclear whether one component is to be picked from each of the groups or if this is intended to be one Markush group. Based on the examples in the instant specification this was considered to be on Markush group and only one oxygen generating component needs to be included. As to Claim 3: Claim 3 recites the limitation "the lower particle size range" in lines 2 and 3. There is insufficient antecedent basis for this limitation in the claim. As to Claim 3: Claim 3 recites the limitation "the higher particle size range" in lines 3 and 4. There is insufficient antecedent basis for this limitation in the claim. Correspondence Any inquiry concerning this communication or earlier communications from the examiner should be directed to ANDREW J OYER whose telephone number is (571)270-0347. The examiner can normally be reached 9AM-6PM EST 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, Mark Eashoo can be reached at (571)272-1197. 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. /Andrew J. Oyer/Primary Examiner, Art Unit 1767
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Prosecution Timeline

Nov 08, 2022
Application Filed
Mar 17, 2026
Non-Final Rejection — §112 (current)

Precedent Cases

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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
79%
Grant Probability
96%
With Interview (+16.4%)
2y 7m
Median Time to Grant
Low
PTA Risk
Based on 589 resolved cases by this examiner. Grant probability derived from career allow rate.

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