Prosecution Insights
Last updated: October 02, 2026
Application No. 18/689,342

APTAMER-BASED ELECTROCHEMICAL VIRUS DETECTOR AND METHODS THEREOF

Non-Final OA §102§112§Other
Filed
Mar 05, 2024
Priority
Sep 14, 2021 — provisional 63/243,889 +1 more
Examiner
KWAK, DEAN P
Art Unit
Tech Center
Assignee
The Johns Hopkins University
OA Round
1 (Non-Final)
59%
Grant Probability
Moderate
1-2
OA Rounds
1y 3m
Est. Remaining
96%
With Interview

Examiner Intelligence

Grants 59% of resolved cases
59%
Career Allowance Rate
394 granted / 671 resolved
-1.3% vs TC avg
Strong +37% interview lift
Without
With
+37.1%
Interview Lift
resolved cases with interview
Typical timeline
3y 10m
Avg Prosecution
84 currently pending
Career history
732
Total Applications
across all art units

Statute-Specific Performance

§101
0.9%
-39.1% vs TC avg
§103
36.3%
-3.7% vs TC avg
§102
28.0%
-12.0% vs TC avg
§112
26.7%
-13.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 671 resolved cases

Office Action

§102 §112 §Other
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 Applicant’s election without traverse of Group III, 16-20; and species A1: an aerosol in the reply filed on 08/18/2026 is acknowledged. 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 18-19 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. Claim 18 is unclear because the term “it” in L2 is ambiguous. Claim 19 is rejected based on further claim dependency. 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. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claim(s) 16-20 is/are rejected under 35 U.S.C. 102a1/a2 as being anticipated by Kendall et al. (WO 2021/062475 A1). Regarding claim 16, Kendall teaches: 16. A device for virus detection, comprising: an electrode (e.g., gold electrodes 2201 ¶ throughout the reference); a functionalized aptamer anchored to the electrode (see Analyte Detection Examples -Aptamers ¶ 0581+); wherein an aptamer is functionalized on a first end with a redox couple (e.g., methylene blue (MB) ¶ 0025, 0597) and the aptamer is functionalized on a second end with a surface-reactive group (e.g., thiol group: The aptamers were immobilised to the gold electrode by forming thiol self assembled monolayers. ¶ 0583; e.g., aptamers include a thiol group 2202 ¶ 0584+); and a binder molecule anchored to the electrode (e.g., MCH ¶ 0596). Regarding claims 17-20, Kendall teaches: 17. The device for virus detection of claim 16, further comprising a wearable article upon which the electrode is disposed and the electrode is coupled to the electrode (see Figs. 3F-3G, ¶ 0040, 0455+). 18. The device for virus detection of claim 16, wherein the functionalized aptamer is functionalized such that it is specific to a virus (e.g., SARS-CoV-2 ¶ 0623). 19. The device for virus detection of claim 18, wherein the virus is SARS-COV-2 (¶ 0623). 20. The device for virus detection of claim 16, wherein: the redox couple is methylthioninium chloride (e.g., methylene blue (MB) ¶ 0025, 0597); and the binder molecule comprises mercapto-1-hexanol (e.g., MCH ¶ 0596). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to DEAN KWAK whose telephone number is (571)270-7072. The examiner can normally be reached M-TH, 4:30 am - 2:30 pm EST. 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, LUAN VAN can be reached at (571) 272-8521. 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. /DEAN KWAK/Primary Examiner, Art Unit 1795 DEAN KWAK Primary Examiner Art Unit 1795
Read full office action

Prosecution Timeline

Mar 05, 2024
Application Filed
Sep 18, 2026
Non-Final Rejection mailed — §102, §112, §Other (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12728415
GRAVITY FLOW MICRO-PHYSIOLOGICAL ARTICLE AND DETERMINING A PHYSIOLOGICAL RESPONSE TO A DRUG
4y 10m to grant Granted Sep 08, 2026
Patent 12722153
MICROFLUIDIC CHIP, TEMPERATURE MEASUREMENT METHOD USING THE SAME, AND ANALYSIS DEVICE USING THE SAME
3y 6m to grant Granted Sep 01, 2026
Patent 12708900
WELLS FOR OPTIMIZED SAMPLE LOADING IN MICROFLUIDIC CHIPS
5y 2m to grant Granted Aug 18, 2026
Patent 12681033
REAGENT RESERVOIRS AND RELATED SYSTEMS AND METHODS
3y 7m to grant Granted Jul 14, 2026
Patent 12649151
MANIFOLDS, SYSTEMS AND METHODS FOR CONDUCTING BIOLOGICAL STUDIES UNDER FLOW
3y 8m to grant Granted Jun 09, 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

1-2
Expected OA Rounds
59%
Grant Probability
96%
With Interview (+37.1%)
3y 10m (~1y 3m remaining)
Median Time to Grant
Low
PTA Risk
Based on 671 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