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For the Inventor, By the Inventor

Menlo Park, CA, United States of America

Raychem Limited

Calculating rank
USPTO Granted Patents = 1,259


Trademarks = 57

Forward Citations = 44,201

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982 inventors (with patents filed for the assignee):

goldMedal John Seymour Mattis (32 out of 34 patents)

silverMedal Corey J McMills (31 out of 32 patents)

bronzeMedal Gerald L Shimirak (30 out of 30 patents)

4.  Stephen Hunter Diaz (27 out of 94 patents)

5.  Richard J Penneck (26 out of 30 patents)

6.  James E Jervis (23 out of 97 patents)

7.  David A Horsma (22 out of 23 patents)

8.  Bruce D Campbell (22 out of 24 patents)

9.  William D Uken (21 out of 25 patents)

10.  Viktors Jansons (21 out of 21 patents)

11.  Pravin L Soni (20 out of 20 patents)

12.  Frank W Mercer (18 out of 22 patents)

13.  Bernard J Lyons (18 out of 18 patents)

14.  Lee M Middleman (17 out of 32 patents)

15.  Akira Tomita (17 out of 24 patents)


Core Competencies:
Cable Enclosure
Conductive Polymers
Overcurrent Protection
Electrical Devices
Telecommunications
Sealing Materials
Polymeric Compositions
Surge Arresters
Liquid Crystal
Magnetic Disks
Heating Cables
Gels

1,259 patents:

1. 6245999 - Cable enclosure arrangement (2001-06-12),
2. 6210607 - Electrically conductive materials (2001-04-03),
3. 6151364 - Codec supporting PCM modem communications over a universal digital loop (2000-11-21),
4. 6118641 - Overcurrent protection device (2000-09-12),
5. 6096804 - Low-density polymeric composition (2000-08-01),
6. 6082863 - Color projection prism (2000-07-04),
7. 6054028 - Ignition cables (2000-04-25),
8. 6043304 - Flame-retarded adhesive composition (2000-03-28),
9. 6030681 - Magnetic disk comprising a substrate with a cermet layer on a porcelain (2000-02-29),
10. 6020560 - Flashover protection cover for electrical power lines (2000-02-01),
11. 6005232 - Heating cable (1999-12-21),
12. 5994446 - Gels made from triblock copolymers (1999-11-30),
13. 5991141 - Surge arrester arranged to provide failure indication (1999-11-23),
14. 5985976 - Method of making a conductive polymer composition (1999-11-16),
15. 5979902 - Cavity sealing article and method (1999-11-09),
Company Overview
Raychem Limited, headquartered in Menlo Park, California, specializes in advanced electrical interconnections and related technologies. The company focuses on developing innovative solutions in cable enclosure, conductive polymers, and overcurrent protection, catering to various industries including telecommunications and electrical devices. Raychem's expertise extends to sealing materials and polymeric compositions, ensuring reliable performance in demanding environments. Their commitment to innovation positions them as a key player in enhancing electrical safety and efficiency.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Nov 10 2026

1,259 Patents

#3 in Menlo Park, CA

#96 in California

#404 in US

#802 in the World

Menlo Park, CA (US)
Menlo Park, CA, United States of America

Raychem Limited

Forward Citations = 44,201

982 inventors:

goldMedal John Seymour Mattis (32 out of 34 patents)

silverMedal Corey J McMills (31 out of 32 patents)

bronzeMedal Gerald L Shimirak (30 out of 30 patents)

4.  Stephen Hunter Diaz (27 out of 94 patents)

5.  Richard J Penneck (26 out of 30 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Raychem Limited. Retrieved from https://idiyas.com/company/raychem

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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