Prosecution Insights
Last updated: October 04, 2026
Application No. 18/994,263

ELECTROLYTE FOR AN ELECTROCHEMICAL GAS SENSOR AND BLOOD GAS MONITORING

Non-Final OA §101§102§103§112
Filed
Jan 14, 2025
Priority
Jul 15, 2022 — nonprovisional of PCTEP2022069891
Examiner
WINAKUR, ERIC FRANK
Art Unit
Tech Center
Assignee
Sentec AG
OA Round
1 (Non-Final)
79%
Grant Probability
Favorable
1-2
OA Rounds
1y 5m
Est. Remaining
93%
With Interview

Examiner Intelligence

Grants 79% — above average
79%
Career Allowance Rate
835 granted / 1053 resolved
+19.3% vs TC avg
Moderate +14% lift
Without
With
+13.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 2m
Avg Prosecution
29 currently pending
Career history
1078
Total Applications
across all art units

Statute-Specific Performance

§101
8.8%
-31.2% vs TC avg
§103
28.4%
-11.6% vs TC avg
§102
22.0%
-18.0% vs TC avg
§112
26.5%
-13.5% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1053 resolved cases

Office Action

§101 §102 §103 §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 . 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 – 15 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. With regard to claims 1 – 8, 11 – 13, and 15, through use of the phrases “preferably”, “more preferably”, “in particular”, “optionally”, and/or “even more preferably” the claims include both narrower and broader ranges within the same claim, rendering the metes and bounds unclear (see MPEP 2173.05(c)). With regard to claim 13, the claim appears to define “the electrolyte” in both lines 4 - 5 and lines 16 – 26; it is unclear which iteration Applicant intends to limit the claim scope. With regard to claim 15, the claim is generally drawn to a “use” without reciting any positively claimed steps to perform the corresponding ‘use’. Claim Rejections - 35 USC § 101 35 U.S.C. 101 reads as follows: Whoever invents or discovers any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof, may obtain a patent therefor, subject to the conditions and requirements of this title. Claim 15 is rejected under 35 U.S.C. 101 because the claimed invention is directed to non-statutory subject matter. The claim(s) does/do not fall within at least one of the four categories of patent eligible subject matter because the claim is drawn to a “use” which is not within one of the statutory categories of invention (see MPEP 2173.05(q)). Claim Rejections - 35 USC § 102 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 – 10 and 15 (as best understood in light of the rejections under 35 USC 112, as set forth above) is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Offenbacher et al. (USPN 8,163,165 – cited by Applicant). Offenbacher et al. teach an electrochemical sensor (Figures 2 – 4 and the descriptions thereof in column 4) that may be used for sensing analytes in body fluids, particularly oxygen or carbon dioxide (column 10, lines 4 – 15; column 11, lines 34 - 52). The sensor including a composition that comprises glycerin/glycerol (a hygroscopic compound) and polyethylene glycol (a hydrophilic/evaporation inhibiting compound), in particular as discussed in Example 4 (column 13), which provides elements consistent with the requirements of the claims. Further, recognize use of a pH buffer and/or alkali metal chloride (column 7, lines 28 – column 8, line 14) and mention that the composition may include polyvinylpyrrolidone (column 7, line 55 – column 8, line 2). Offenbacher et al. provide details regarding selection of materials and overall configuration of the sensor in the Detailed Description section. Claim Rejections - 35 USC § 103 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) 11 – 14 is/are rejected under 35 U.S.C. 103 as being unpatentable over Offenbacher et al. Offenbacher et al. teach all of the features of the claimed invention as discussed above. While Offenbacher et al. discuss details regarding selection of materials, they do not provide the particular composition percentages as set forth in claims 11 and 12. However, without a showing of unexpected results or criticality it would have been within the skill level of the art before the effective filing date of the claimed invention to have performed routine experimentation to determine results-effective variable based parameters of the composition. Additionally, although Offenbacher et al. recognize that their electrochemical sensor may be used to analyze a variety of biological fluids, they do not particularly teach the sensor configuration includes a means for attaching to a living body, as set forth in claim 13. However, a variety of manners to attach/connect an electrochemical sensor to a living subject were well known in the art before the effective filing date of the claimed invention, and thus it would have been within the skill level of the art to modify Offenbacher et al. to include a means for attachment, to permit the sensor to be held in a desired position during the measurement of the body fluid of interest. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ERIC FRANK WINAKUR whose telephone number is (571)272-4736. The examiner can normally be reached Mon-Fri 9 am - 6 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, Chuck Marmor, II can be reached at 571-272-4730. 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. /ERIC F WINAKUR/Primary Examiner, Art Unit 3791
Read full office action

Prosecution Timeline

Jan 14, 2025
Application Filed
Aug 20, 2026
Non-Final Rejection mailed — §101, §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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DETERMINATION OF THE PRESENCE OF SARS-COV-2 OR OTHER RESPIRATORY PATHOGEN IN A PERSON
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Patent 12714340
SIDELIGHT TYPE NON-INVASIVE GLUCOSE MONITORING MODULE
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Patent 12708293
TUNABLE HYBRID III-V/IV LASER SENSOR SYSTEM-ON-A CHIP FOR REAL-TIME MONITORING OF A BLOOD CONSTITUENT CONCENTRATION LEVEL
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Patent 12708329
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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
93%
With Interview (+13.8%)
3y 2m (~1y 5m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1053 resolved cases by this examiner. Grant probability derived from career allowance rate.

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