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For the Inventor, By the Inventor

St. Louis, MO, United States of America

Sigma-aldrich Co. LLC


USPTO Granted Patents = 141



Trademarks = 116

Forward Citations = 2,208

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

5.  Rajesh Odedra (10 out of 16 patents)

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

7.  Gregory D Davis (9 out of 11 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:
Genome Modification
CRISPR Systems
Nucleic Acid Amplification
Protein Analysis
Graphene Oxide Gels
RNA-guided Proteins
Solid Phase Extraction
Micro RNA Isolation
Chemical Compound Synthesis
Targeted Gene Disruption
Recombinant Protein Production
Histone Acetylation

141 patents:

1. 12503760 - Methods of using high-purity alkynes for selective deposition (2025-12-23),
2. 12297449 - Engineered CAS9 systems for eukaryotic genome modification (2025-05-13),
3. 12292448 - Quantitative analysis of proteins (2025-05-06),
4. 12275952 - Using programmable DNA binding proteins to enhance targeted genome modification (2025-04-14),
5. 12221606 - Using nucleosome interacting protein domains to enhance targeted genome modification (2025-02-11),
6. 12084675 - Using programmable DNA binding proteins to enhance targeted genome modification (2024-09-10),
7. 12065642 - Using nucleosome interacting protein domains to enhance targeted genome modification (2024-08-20),
8. 12024433 - Methods for making graphene oxide gels (2024-07-02),
9. 11965184 - CRISPR/Cas fusion proteins and systems (2024-04-23),
10. 11896953 - HLB copolymers (2024-02-13),
11. 11891510 - Poloxamer compositions and methods of making and using same (2024-02-06),
12. 11806693 - HPLC carbon with narrow particle size distribution (2023-11-07),
13. 11795501 - Methods for next generation genome walking and related compositions and kits (2023-10-24),
14. D980235 - Display screen or portion thereof with graphical user interface (2023-03-07),
15. D970517 - Display screen or portion thereof with graphical user interface (2022-11-22),
Sigma-Aldrich Co. LLC is a leading provider of high-quality chemicals, biochemical and research products for academic, government, and industrial customers worldwide. With a broad portfolio of over 300,000 products, the company is dedicated to enabling the advancement of scientific discovery and innovation.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

141 Patents

#21 in St. Louis, MO

#33 in Missouri

#2,674 in US

#5,610 in the World

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St. Louis, MO, United States of America

Sigma-aldrich Co. LLC

Forward Citations = 2,208

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

5.  Rajesh Odedra (10 out of 16 patents)

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