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Bad Homburg, Germany

Fresenius Ag

USPTO Granted Patents = 171

% Expired Patents = 1.2

CIPO Patents = 2

EPO Patents = 4

Trademarks = 7

Forward Citations = 12,790

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151 inventors (with patents filed for the assignee):

Hans-Dietrich Polaschegg (36 out of 37 patents)

Bernd Mathieu (23 out of 27 patents)

Wolfram Weber (18 out of 22 patents)

4. Klaus Heilmann (12 out of 23 patents)

5. Artur Meisberger (11 out of 23 patents)

6. Wolfgang Biesel (9 out of 16 patents)

7. Klaus Sommermeyer (9 out of 26 patents)

8. Hans-Jurgen Neumann (9 out of 10 patents)

9. Bernd Steinbach (7 out of 27 patents)

10. Ulrich Faeser (6 out of 6 patents)

11. Klaus Metzner (5 out of 9 patents)

12. Thomas Nicola (5 out of 6 patents)

13. Friedrich Witthaus (5 out of 8 patents)

14. Reinhold Herbert (5 out of 5 patents)

15. Thomas Pusinelli (4 out of 14 patents)

Core Competencies:

Blood Separation

Dialysis Solutions

Sterile Connectors

Autotransfusion

Centrifuge

Medical Bags

Hemodialysis

Infusion Pumps

Biosensors

Hydroxyethyl Starch

Fluid Flow Control

Aqueous Disinfecting Agent

171 patents: Sort by Forward Citations

1. 7070589 - Sterility-maintaining connection system for medical systems and use thereof (2006-07-04),

2. 7041175 - Method for the continuous production of hydrolytically broken down and possibly substituted starch, use of hydrolytically broken down starch and device for producing same (2006-05-09),

3. 6814862 - Method and apparatus for processing intra or postoperative blood loss for autotransfusion (2004-11-09),

4. 6770049 - Method of filling a tube system with a rinsing liquid and a tube system for use with this method (2004-08-03),

5. 6488860 - Device and method for separating blood into blood components (2002-12-03),

6. 6485479 - Sterile connector (2002-11-26),

7. 6454736 - Method of filling a tube system with a rinsing liquid and a tube system for use with this method (2002-09-24),

8. 6364143 - Sterile connector for containers which contain medicinal liquids (2002-04-02),

9. 6362887 - Device for measuring changes in parameters within transparent objects (2002-03-26),

10. 6299784 - Method and apparatus for processing intra- or postoperative blood loss for autotransfusion (2001-10-09),

11. 6284140 - Dialysis solution for peritoneal dialysis (2001-09-04),

12. 6280375 - Flow-through centrifuge for centrifuging biological fluids (2001-08-28),

13. 6277060 - Centrifuge chamber for a cell separator having a spiral separation chamber (2001-08-21),

14. 6273849 - Centrifuge and line for supplying and/or removing at least one fluid from the separation unit of a centrifuge to a stationary connection (2001-08-14),

15. 6212936 - Ultrasonic transmitter particularly for an air bubble detector (2001-04-10),

Company Overview

Fresenius AG, headquartered in Bad Homburg, Germany, is a global healthcare group specializing in medical devices and services. The company focuses on innovative solutions for blood separation, dialysis, and infusion, enhancing patient care through advanced technology. Its product portfolio includes sterile connectors, autotransfusion systems, centrifuges, medical bags, and hemodialysis equipment. Fresenius is committed to improving health outcomes and advancing medical practices worldwide, leveraging its expertise in critical care and chronic disease management.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

171 Patents

#3 in Bad Homburg

#352 in Germany

#4,844 in the World

Bad Homburg, Germany

Fresenius Ag

Forward Citations = 12,790

151 inventors:

Hans-Dietrich Polaschegg (36 out of 37 patents)

Bernd Mathieu (23 out of 27 patents)

Wolfram Weber (18 out of 22 patents)

4. Klaus Heilmann (12 out of 23 patents)

5. Artur Meisberger (11 out of 23 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Fresenius Ag. Retrieved from https://idiyas.com/company/fresenius-ag

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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