Prosecution Insights
Last updated: May 29, 2026
Application No. 17/851,575

METHOD FOR MEASURING THE IMPEDANCE OF A BIOLOGICAL LOAD USING LOW POWER DIRECT CURRENT

Non-Final OA §112
Filed
Jun 28, 2022
Priority
Feb 26, 2019 — divisional of 16/285,714 +1 more
Examiner
TU, AURELIE H
Art Unit
3791
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Mb Device LLC
OA Round
3 (Non-Final)
56%
Grant Probability
Moderate
3-4
OA Rounds
0m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 56% of resolved cases
56%
Career Allowance Rate
130 granted / 232 resolved
-14.0% vs TC avg
Strong +61% interview lift
Without
With
+61.0%
Interview Lift
resolved cases with interview
Typical timeline
3y 8m
Avg Prosecution
40 currently pending
Career history
294
Total Applications
across all art units

Statute-Specific Performance

§101
13.3%
-26.7% vs TC avg
§103
66.6%
+26.6% vs TC avg
§102
7.2%
-32.8% vs TC avg
§112
7.3%
-32.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 232 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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 08 January 2026 and 03 March 2026 has been entered. Response to Amendment Claims 1, 5, 6, 8-10, 12, and 17 are currently pending. Claims 2-4, 7, 11, and 18 have been cancelled. Claims 1, 5, 6, 8-10, 12, and 17 have been amended. Claims 1, 5, 6, 8, 9, 12, and 17 have been amended to overcome the claim objections and claim 9 has been amended to overcome the 35 U.S.C. 112(b) rejection set forth in the Final Office Action mailed on 20 October 2025. Claim Objections Claims 1, 5, 9, 12, and 17 are objected to because of the following informalities: “encounter-the” in line 6 of claim 1 should read as “encounter the” “the fundamental frequency” in lines 6-7 should read as “a fundamental frequency” “the low power direct current is selected” in line 7 of claim 1 should read as “the low-power, direct current pulse” “voltages of timed,” in line 8 of claim 1 should read as “voltages of the timed,” “occur.” in line 10 of claim 1 should read as “occur,” “low-power pulses” in line 12 of claim 1 should read as “low-power, direct current pulses” “series are of” in line 2 of claim 5 should read as “series of” “of total” in line 3 of claim 9 should read as “of a total” “wherein amplitude” in line 1 of claim 12 should read as “wherein an amplitude” “an increment” in line 4 of claim 17 should read as “the increment” “until maximum” in line 6 of claim 17 should read as “until the maximum” Appropriate correction is required. 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 and 10 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. Claims 5, 6, 8, 9, 12, and 17 are further rejected due to their dependency to claim 1. Claim 1 recites “wherein the low power direct current is selected…” in line 7. It is unclear if only one of the low power direct current pulses is selected or if each of the low power direct current are selected. Clarification is requested. Claim 10 recites “sinusoidal driven pulses” in line 1. It is unclear if this is referring to the same “sinusoidal driven pulses” as mentioned in line 5 of claim 1. Clarification is requested. Response to Arguments Applicant’s arguments with respect to the 35 U.S.C. 102(a)(1) and 103 rejections have been fully considered and are persuasive. The 35 U.S.C. 102(a)(1) and 103 rejections of claims 1, 5, 6, 8-10, 12, and 17 have been withdrawn. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to AURELIE H TU whose telephone number is (571)272-8465. The examiner can normally be reached [M-F] 7:30-3:30. 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, Alexander Valvis can be reached at (571) 272-4233. 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. /AURELIE H TU/ Primary Examiner, Art Unit 3791
Read full office action

Prosecution Timeline

Show 1 earlier event
Jun 26, 2025
Non-Final Rejection mailed — §112
Aug 19, 2025
Response Filed
Oct 06, 2025
Applicant Interview (Telephonic)
Oct 20, 2025
Final Rejection mailed — §112
Jan 08, 2026
Request for Continued Examination
Feb 17, 2026
Response after Non-Final Action
Mar 03, 2026
Response Filed
May 22, 2026
Non-Final Rejection mailed — §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

3-4
Expected OA Rounds
56%
Grant Probability
99%
With Interview (+61.0%)
3y 8m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 232 resolved cases by this examiner. Grant probability derived from career allowance rate.

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