logo

For the Inventor, By the Inventor

St. Louis, MO, United States of America

Sigma-Aldrich Co. LLC

Calculating rank
USPTO Granted Patents = 142

% Expired Patents = 15.5



Trademarks = 97

Forward Citations = 2,300

Loading Chart...
Loading Chart...

190 inventors (with patents filed for the assignee):

goldMedal Fuqiang Chen (17 out of 17 patents)

silverMedal Brian W Ward (12 out of 12 patents)

bronzeMedal Carol A Kreader (11 out of 12 patents)

4.  Gregory D Davis (10 out of 11 patents)

5.  Daniel W Armstrong (10 out of 20 patents)

6.  Rajesh Odedra (10 out of 18 patents)

7.  Eric R Rinderer (10 out of 45 patents)

8.  Ravi Kanjolia (7 out of 13 patents)

9.  Richard J Mehigh (7 out of 7 patents)

10.  John G Dapron (7 out of 7 patents)

11.  Sarah Trice (7 out of 7 patents)

12.  Churl Oh (6 out of 9 patents)

13.  Nadia Brugger (6 out of 32 patents)

14.  Henry George (6 out of 6 patents)

15.  Kevin Kayser (6 out of 6 patents)


Core Competencies:
CRISPR
Genome Editing
DNA Binding Proteins
Protein Analysis
Nucleic Acid Amplification
Gene Disruption
RNA Isolation
Histone Acetylation
Alkynes Deposition
Liquid Salts
Thin Film Deposition
Polysilazane Polymers

142 patents:

1. 12729216 - Ferrocene-based unsymmetrical ligands bearing bulky di(adamantyl)phosphino motif and their metal catalysts (2026-09-08),
2. 12503760 - Methods of using high-purity alkynes for selective deposition (2025-12-23),
3. 12297449 - Engineered CAS9 systems for eukaryotic genome modification (2025-05-13),
4. 12292448 - Quantitative analysis of proteins (2025-05-06),
5. 12275952 - Using programmable DNA binding proteins to enhance targeted genome modification (2025-04-14),
6. 12221606 - Using nucleosome interacting protein domains to enhance targeted genome modification (2025-02-11),
7. 12084675 - Using programmable DNA binding proteins to enhance targeted genome modification (2024-09-10),
8. 12065642 - Using nucleosome interacting protein domains to enhance targeted genome modification (2024-08-20),
9. 12024433 - Methods for making graphene oxide gels (2024-07-02),
10. 11965184 - CRISPR/Cas fusion proteins and systems (2024-04-23),
11. 11896953 - HLB copolymers (2024-02-13),
12. 11891510 - Poloxamer compositions and methods of making and using same (2024-02-06),
13. 11806693 - HPLC carbon with narrow particle size distribution (2023-11-07),
14. 11795501 - Methods for next generation genome walking and related compositions and kits (2023-10-24),
15. D980235 - Display screen or portion thereof with graphical user interface (2023-03-07),
Company Overview
Sigma-Aldrich Co. LLC, headquartered in St. Louis, MO, is a leading provider of innovative solutions in the field of genome modification. The company specializes in advanced technologies such as CRISPR, genome editing, and DNA binding proteins, catering to a diverse range of applications in life sciences research. Their expertise extends to protein analysis, nucleic acid amplification, and gene disruption, making them a vital resource for researchers focused on RNA isolation and histone acetylation. Sigma-Aldrich is committed to advancing scientific discovery through high-quality products and services.
Profile summary synthesized from public USPTO records and patent filings.

logo

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

142 Patents

#23 in St. Louis, MO

#36 in Missouri

#2,759 in US

#5,733 in the World

St. Louis, MO (US)
St. Louis, MO, United States of America

Sigma-Aldrich Co. LLC

Forward Citations = 2,300

190 inventors:

goldMedal Fuqiang Chen (17 out of 17 patents)

silverMedal Brian W Ward (12 out of 12 patents)

bronzeMedal Carol A Kreader (11 out of 12 patents)

4.  Gregory D Davis (10 out of 11 patents)

5.  Daniel W Armstrong (10 out of 20 patents)

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

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]
Loading…