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For the Inventor, By the Inventor

Minneapolis, MN, United States of America

Renal Systems, Inc.

Calculating rank
USPTO Granted Patents = 21

Forward Citations = 1,562

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22 inventors (with patents filed for the assignee):

goldMedal Louis C Cosentino (18 out of 46 patents)

silverMedal Felix J Martinez (6 out of 9 patents)

bronzeMedal Larry E Fuller (4 out of 8 patents)

4.  John P Silbernagel (3 out of 3 patents)

5.  Bill H Niemi (2 out of 6 patents)

6.  Stuart L Gallant (2 out of 4 patents)

7.  Jamshed R Cooper (2 out of 2 patents)

8.  Wayne I Nelson (2 out of 2 patents)

9.  Richard A Ward (1 out of 3 patents)

10.  Elias Klein (1 out of 17 patents)

11.  Peter Stasz (1 out of 17 patents)

12.  LeRoy J Fischbach (1 out of 4 patents)

13.  Richard A Helms (1 out of 7 patents)

14.  Harold Lee Massie (1 out of 1 patent)

15.  B Steven Springrose (1 out of 2 patents)


21 patents:

1. 4664891 - Dialysis solution preparation from prepackaged dry chemicals (1987-05-12),
2. 4645645 - Oxygenator having an improved heat exchanger (1987-02-24),
3. 4645494 - Peritoneal device system (1987-02-24),
4. 4517081 - Dialyzer reuse machine (1985-05-14),
5. 4496350 - Blood access device (1985-01-29),
6. 4496349 - Percutaneous implant (1985-01-29),
7. 4488877 - Percutaneous implant for peritoneal dialysis (1984-12-18),
8. 4417888 - Percutaneous implant (1983-11-29),
9. 4405320 - Septum retaining means for percutaneous device (1983-09-20),
10. 4405319 - Porous titanium coating for blood access device (1983-09-20),
11. 4386634 - Proportioning system (1983-06-07),
12. 4363609 - Blood pump system (1982-12-14),
13. 4221543 - Bloom pump system (1980-09-09),
14. 4163722 - Universal dialyzer end cap (1979-08-07),
15. 4142414 - Ultrasonic flow meter (1979-03-06),
Company Overview
Renal Systems, Inc. is a Minneapolis-based company specializing in innovative medical devices and technologies aimed at improving renal care. The organization focuses on developing advanced solutions for dialysis and related therapies, enhancing patient outcomes through cutting-edge research and engineering. With a commitment to addressing the challenges faced by patients with kidney diseases, Renal Systems is dedicated to advancing the field of nephrology through its specialized products and services.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

21 Patents

#91 in Minneapolis, MN

#470 in Minnesota

#15,719 in US

#30,018 in the World

Minneapolis, MN (US)
Minneapolis, MN, United States of America

Renal Systems, Inc.

Forward Citations = 1,562

22 inventors:

goldMedal Louis C Cosentino (18 out of 46 patents)

silverMedal Felix J Martinez (6 out of 9 patents)

bronzeMedal Larry E Fuller (4 out of 8 patents)

4.  John P Silbernagel (3 out of 3 patents)

5.  Bill H Niemi (2 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Renal Systems, Inc.. Retrieved from https://idiyas.com/company/renal-systems

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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