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For the Inventor, By the Inventor

Sylmar, CA, United States of America

Prc De Soto International, Inc.


USPTO Granted Patents = 175



Trademarks = 56

Forward Citations = 1,188

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129 inventors (with patents filed for the assignee):

goldMedal Renhe Lin (69 out of 74 patents)

silverMedal Chandra B Rao (44 out of 48 patents)

bronzeMedal Juexiao Cai (36 out of 37 patents)

4.  Lawrence G Anderson (26 out of 69 patents)

5.  Bruce Virnelson (23 out of 24 patents)

6.  Marfi Ito (21 out of 21 patents)

7.  Raquel Keledjian (18 out of 18 patents)

8.  Gregory J McCollum (17 out of 137 patents)

9.  Stephen J Hobbs (9 out of 9 patents)

10.  Michael A Cosman (9 out of 32 patents)

11.  Michael Allen Mayo (9 out of 42 patents)

12.  Weibin Cui (8 out of 9 patents)

13.  Siamanto Abrami (8 out of 9 patents)

14.  Guangliang Tang (7 out of 8 patents)

15.  Steven J Hobbs (7 out of 7 patents)


Core Competencies:
Corrosion Inhibitors
Electrodepositable Coatings
Polyurethane Prepolymers
Aerospace Coatings
Sealant Compositions
Photocurable Adhesion Promoters
Low Density Compositions
Dual Cure Sealants
Hydraulic Fluid Resistant Sealants
Chromate Free Primers
Sulfur-Containing Polymers
Actinic Radiation-Curable Coatings

175 patents:

1. 12486579 - Systems and methods for treating a metal substrate (2025-12-02),
2. 12384135 - Curable film-forming compositions containing lithium silicates as corrosion inhibitors and multilayer coated metal substrates (2025-08-12),
3. 12221554 - Electrodepositable coating composition (2025-02-11),
4. 12104272 - Treated substrates (2024-10-01),
5. 12024645 - Chromate free pretreatment primer (2024-07-02),
6. 11945614 - Sealant cartridge air release apparatus and methods (2024-04-02),
7. 11898054 - Actinic radiation-curable urethane/urea-containing aerospace coatings and sealants (2024-02-13),
8. 11807707 - Polyurethane prepolymers incorporating nonlinear short chain diols and/or soft diisocyanates compositions, and uses thereof (2023-11-07),
9. 11760909 - Low density aerospace compositions and sealants (2023-09-19),
10. 11739222 - Chromate free pretreatment primer (2023-08-29),
11. 11712711 - Expandable plunger head assemblies for sealant dispensing guns (2023-08-01),
12. 11655340 - Dual cure sealants (2023-05-23),
13. 11624007 - Photocurable adhesion-promoting compositions and methods of use (2023-04-11),
14. 11608458 - Adhesion-promoting interlayer compositions containing organic titanates/zirconates and methods of use (2023-03-21),
15. 11505702 - Controlled cure rate using polyether-coated synergists (2022-11-22),
PRC De Soto International, Inc. is a global leader in the development and manufacture of high-performance Aerospace Coatings, specializing in surface and corrosion protection products for the aviation industry. With a heritage dating back over 70 years, we provide innovative solutions that meet the stringent requirements of commercial, military, and general aviation customers worldwide. Our advanced coatings are trusted by major airlines, aircraft manufacturers, and MRO facilities, ensuring the longevity and reliability of critical aerospace components. For more information, please visit our website.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

175 Patents

#3 in Sylmar, CA

#510 in California

#2,220 in US

#4,623 in the World

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Sylmar, CA, United States of America

Prc De Soto International, Inc.

Forward Citations = 1,188

129 inventors:

goldMedal Renhe Lin (69 out of 74 patents)

silverMedal Chandra B Rao (44 out of 48 patents)

bronzeMedal Juexiao Cai (36 out of 37 patents)

4.  Lawrence G Anderson (26 out of 69 patents)

5.  Bruce Virnelson (23 out of 24 patents)

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