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For the Inventor, By the Inventor

Saint Paul, MN, United States of America

Tc1 LLC


USPTO Granted Patents = 286


Trademarks = 17

Forward Citations = 3,664

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260 inventors (with patents filed for the assignee):

goldMedal Michael R Butler (37 out of 48 patents)

silverMedal Paul F Muller (36 out of 54 patents)

bronzeMedal Keif M Fitzgerald (35 out of 58 patents)

4.  John Freddy Hansen (32 out of 46 patents)

5.  Richard L Keenan (29 out of 70 patents)

6.  Kevin Bourque (21 out of 36 patents)

7.  Ethan Falk Petersen (20 out of 47 patents)

8.  Adam R Tanner (20 out of 21 patents)

9.  Eric T Lee (19 out of 40 patents)

10.  Carine Hoarau (19 out of 57 patents)

11.  Joseph C Stark, Iii (18 out of 23 patents)

12.  Todd Jenkins (18 out of 24 patents)

13.  Alexander Medvedev (18 out of 21 patents)

14.  Phyllis Yuen (16 out of 26 patents)

15.  John Nguyen (13 out of 27 patents)


Core Competencies:
Medical Device Connectors
Catheter Pumps
Blood Pump Controllers
Ventricular Assist Devices
Wireless Energy Transfer
Heart Pump Systems
Inertial Sensing
Energy Efficiency
Fluid Seals
Speed Control Algorithms
Artificial Pulse Generation
Modular Cable Systems

286 patents:

1. 12491354 - Sheath system for catheter pump (2025-12-09),
2. 12485271 - Systems and methods for medical device connectors (2025-12-02),
3. 12478774 - Catheter pump with off-set motor position (2025-11-25),
4. 12470060 - Blood pump controllers and methods of use for improved energy efficiency (2025-11-11),
5. 12465746 - Axial flow blood pump (2025-11-11),
6. 12440239 - Methods and systems for irrigating particulates during heart pump implantation (2025-10-14),
7. 12431248 - System and method for inter-device arrhythmia detection and confirmation (2025-09-30),
8. 12404858 - Catheter blood pump heart assist device (2025-09-02),
9. 12390170 - Methods and systems for controlling a left ventricular assist device (2025-08-19),
10. 12383725 - Bearingless implantable blood pump (2025-08-12),
11. 12383156 - Pressure sensing ventricular assist devices and methods of use (2025-08-12),
12. 12350483 - Fluid seals for catheter pump motor assembly (2025-07-08),
13. 12343517 - Cardiac pump with speed adapted for ventricle unloading (2025-07-01),
14. 12337165 - Catheter pump (2025-06-24),
15. 12297836 - Alternating pump gaps (2025-05-13),
TC1 LLC is a leading technology consulting firm specializing in providing innovative IT solutions for businesses of all sizes. With a team of highly skilled professionals, TC1 offers a wide range of services including software development, cloud computing, cybersecurity, and digital transformation. Our goal is to help our clients leverage technology to drive growth, improve efficiency, and stay ahead of the competition. Visit our website to learn more about our services and explore how we can help your business thrive.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

286 Patents

#9 in Saint Paul, MN

#38 in Minnesota

#1,467 in US

#3,010 in the World

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Saint Paul, MN, United States of America

Tc1 LLC

Forward Citations = 3,664

260 inventors:

goldMedal Michael R Butler (37 out of 48 patents)

silverMedal Paul F Muller (36 out of 54 patents)

bronzeMedal Keif M Fitzgerald (35 out of 58 patents)

4.  John Freddy Hansen (32 out of 46 patents)

5.  Richard L Keenan (29 out of 70 patents)

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