For the Inventor, By the Inventor

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Torrance, CA, United States of America

Phenomenex, Inc.

USPTO Granted Patents = 12

CIPO Patents = 1

EPO Patents = 2

Trademarks = 14

Forward Citations = 182

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26 inventors (with patents filed for the assignee):

Tivadar Farkas (5 out of 5 patents)

Emmet E Welch (5 out of 8 patents)

Romaine R Maiefski (2 out of 18 patents)

4. Peter C Rahn (2 out of 2 patents)

5. Ismail M Rustamov (2 out of 2 patents)

6. Michael C Chitty (2 out of 2 patents)

7. Lawrence Loo (2 out of 2 patents)

8. Qi-Feng Ma (2 out of 5 patents)

9. Fred Astani (2 out of 2 patents)

10. Toshihiko Hanai (1 out of 2 patents)

11. Doug Silva (1 out of 1 patent)

12. Jim Archer (1 out of 1 patent)

13. Sky Countryman (1 out of 1 patent)

14. Kory Kelly (1 out of 1 patent)

15. Arthur R Dixon (1 out of 1 patent)

12 patents: Sort by Forward Citations

1. 12434218 - Pore structure for separation of adeno-associated viruses (AAVS) from their aggregates (2025-10-07),

2. 10603604 - HPLC column (2020-03-31),

3. 8658038 - PH stable chromatographic media using templated multilayer organic/inorganic grafting (2014-02-25),

4. 8062516 - Low thermal mass, adjustable locking GC nut (2011-11-22),

5. 7674383 - Method and apparatus for packing chromatography columns (2010-03-09),

6. 7563367 - pH stable chromatographic media using templated multilayer organic/inorganic grafting (2009-07-21),

7. 7119145 - Surface graft modified resins and formation thereof (2006-10-10),

8. 6770246 - Sorbent cartridge for solid phase extraction (2004-08-03),

9. 6162362 - Direct screw-on cartridge holder with self-adjustable connection (2000-12-19),

10. 5993653 - Composition and column used in HPLC (1999-11-30),

11. 5938919 - Fused silica capillary columns protected by flexible shielding (1999-08-17),

12. 5863428 - Guard cartridge for chromatography (1999-01-26),

Phenomenex, Inc. is a leader in the development and manufacture of separation science consumables for the global analytical chromatography market. With a wide range of products including columns, sample preparation, reference standards, and accessories, Phenomenex is committed to providing innovative solutions to support the analytical needs of various industries including pharmaceutical, food and beverage, environmental, and more.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

12 Patents

#57 in Torrance, CA

#5,885 in California

#24,831 in US

#46,738 in the World

Torrance, CA, United States of America

Phenomenex, Inc.

Forward Citations = 182

26 inventors:

Tivadar Farkas (5 out of 5 patents)

Emmet E Welch (5 out of 8 patents)

Romaine R Maiefski (2 out of 18 patents)

4. Peter C Rahn (2 out of 2 patents)

5. Ismail M Rustamov (2 out of 2 patents)

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