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For the Inventor, By the Inventor

Torrance, CA, United States of America

Phenomenex, Inc.


USPTO Granted Patents = 12

% Expired Patents = 8.3



Trademarks = 9

Forward Citations = 183

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27 inventors (with patents filed for the assignee):

goldMedal Tivadar Farkas (5 out of 5 patents)

silverMedal Emmet E Welch (5 out of 8 patents)

bronzeMedal 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:

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),
Company Overview
Phenomenex, Inc. is a global leader in the development and manufacturing of innovative separation science products. Based in Torrance, California, the company specializes in chromatography solutions, offering a wide range of products including columns, consumables, and analytical instruments. Phenomenex serves various industries such as pharmaceuticals, environmental testing, and food safety, focusing on enhancing laboratory efficiency and accuracy through advanced technologies and comprehensive support services.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

Phenomenex, Inc. USPTO Patent Assignee Logo
12 Patents

#54 in Torrance, CA

#6,066 in California

#25,578 in US

#48,209 in the World

Torrance, CA (US)
Torrance, CA, United States of America

Phenomenex, Inc.

Forward Citations = 183

27 inventors:

goldMedal Tivadar Farkas (5 out of 5 patents)

silverMedal Emmet E Welch (5 out of 8 patents)

bronzeMedal 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)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Phenomenex, Inc.. Retrieved from https://idiyas.com/company/phenomenex

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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