Prosecution Insights
Last updated: October 25, 2026
Application No. 18/135,257

CALCULATING CARDIAC OUTPUT OF A PATIENT UNDERGOING VENO-VENOUS EXTRACORPOREAL BLOOD OXYGENATION

Non-Final OA §101
Filed
Apr 17, 2023
Priority
May 02, 2019 — provisional 62/842,192 +1 more
Examiner
DEAK, LESLIE R
Art Unit
3700
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Transonic Systems Inc.
OA Round
1 (Non-Final)
75%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
93%
With Interview

Examiner Intelligence

Grants 75% — above average
75%
Career Allowance Rate
725 granted / 962 resolved
+5.4% vs TC avg
Strong +18% interview lift
Without
With
+17.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 3m
Avg Prosecution
28 currently pending
Career history
1000
Total Applications
across all art units

Statute-Specific Performance

§101
2.4%
-37.6% vs TC avg
§103
50.1%
+10.1% vs TC avg
§102
22.6%
-17.4% vs TC avg
§112
11.6%
-28.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 962 resolved cases

Office Action

§101
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 Claim Status The Notice of Allowance mailed 30 January 2025 has been withdrawn. The instant rejection of pending claims 1-7 and 25-26 is non-final. 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. Claims 1-7, 25, and 26 are rejected under 35 U.S.C. 101 because the claimed invention is directed to an abstract idea without significantly more. (See MPEP 2106). Step 1: The claims are drawn to a process. Step 2A, Prong One: The claims recite a judicial exception as an abstract idea or mental process in the form of mathematical relationships such as observing values and making mathematical calculations (measuring, establishing, determining, calculating). Step 2A, Prong Two: This judicial exception is not integrated into a practical application because implementing a mathematical principle on a physical device (in this case, an extracorporeal oxygenation circuit) is not a patentable application of that principle. (see MPEP 2106.04(d) Step 2B: The claims do not include additional elements that are sufficient to amount to significantly more than the judicial exception because the method is implemented in an extracorporeal blood oxygenation circuit, which Applicant discloses is “conventional” or known in the art. (See Specification at ¶23, MPEP 2106.05(b), (d)). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to LESLIE R DEAK whose telephone number is (571)272-4943. The examiner can normally be reached Monday-Friday, 9am to 5:30pm. 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, Sarah Al-Hashimi can be reached at 571-272-7159. 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. /LESLIE R DEAK/Primary Examiner, Art Unit 3799 3 August 2026
Read full office action

Prosecution Timeline

Apr 17, 2023
Application Filed
Aug 06, 2026
Non-Final Rejection mailed — §101 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12746153
OCULAR IMPLANTS AND METHODS FOR DELIVERING OCULAR IMPLANTS INTO THE EYE
3y 8m to grant Granted Sep 29, 2026
Patent 12746315
Method for Controlling a Blood Treatment Apparatus, and Apparatuses
2y 11m to grant Granted Sep 29, 2026
Patent 12740769
APPARATUS AND METHODS FOR DISINFECTION OF A SPECIMEN CONTAINER
3y 8m to grant Granted Sep 22, 2026
Patent 12741073
System and Method for Extracorporeal Temperature Control
3y 0m to grant Granted Sep 22, 2026
Patent 12741072
ARTIFICIAL LUNG SYSTEM AND ITS METHODS OF USE
3y 4m to grant Granted Sep 22, 2026
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
75%
Grant Probability
93%
With Interview (+17.8%)
3y 3m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 962 resolved cases by this examiner. Grant probability derived from career allowance rate.

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