% Expired Patents = 66.7

EPO Patents = 3

Trademarks = 2

Forward Citations = 45

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12 inventors (with patents filed for the assignee):

Ute Resch-Genger (2 out of 6 patents)

Katrin Hoffmann (2 out of 6 patents)

Dietmar Pfeifer (2 out of 3 patents)

4. Pierre Nording (2 out of 3 patents)

5. Knut Rurack (1 out of 15 patents)

6. Roland Nitschke (1 out of 2 patents)

7. Christian Monte (1 out of 2 patents)

8. Angelika Hoffmann (1 out of 2 patents)

9. Bernhard Schönenberger (1 out of 2 patents)

10. Monika Spieles (1 out of 2 patents)

11. Eric R Rinderer (1 out of 45 patents)

12. Martin L Witherbee (1 out of 3 patents)

3 patents: Sort by Forward Citations

1. 8361394 - Calibration system and dye kit and their uses for characterizing luminescence measurement systems (2013-01-29),

2. 7947502 - Method and kit for calibrating a photoluminescence measurement system (2011-05-24),

3. 5730400 - Cable tray cover system (1998-03-24),

Company Overview

Sigma-Aldrich GmbH is a leading provider of research chemicals, biochemicals, and other laboratory products. With a wide range of high-quality products and exceptional customer service, Sigma-Aldrich GmbH serves scientific and academic communities worldwide. Their website offers easy access to a vast catalog of products, technical information, and resources for researchers across various domains.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

3 Patents

#8 in Buchs

#2,402 in Switzerland

Buchs, Switzerland

Sigma-Aldrich Gmbh

Forward Citations = 45

12 inventors:

Ute Resch-Genger (2 out of 6 patents)

Katrin Hoffmann (2 out of 6 patents)

Dietmar Pfeifer (2 out of 3 patents)

4. Pierre Nording (2 out of 3 patents)

5. Knut Rurack (1 out of 15 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sigma-Aldrich Gmbh. Retrieved from https://idiyas.com/company/sigma-aldrich

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]

3 patents (EPO):

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]