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USPTO Data Jan 1 1976 - Sep 15 2026
67 Patents
#3 in Tualatin, OR
#68 in Oregon
#5,444 in US
#11,006 in the World
Kai U.s.a., Ltd.
Forward Citations = 1,736
23 inventors:
Tualatin, OR, United States of America
Kai U.s.a., Ltd.
% Expired Patents = 3.0
Trademarks = 161
Forward Citations = 1,736
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23 inventors (with patents filed for the assignee):
Kenneth J Onion (26 out of 73 patents)
Grant Woodrow Hawk (9 out of 16 patents)
Gavin Dan Hawk (9 out of 16 patents)
4. Craig Green (9 out of 9 patents)
5. Dennis L Epstein (9 out of 9 patents)
6. Takeshi Ono (6 out of 10 patents)
7. Timothy James Galyean (5 out of 5 patents)
8. James MacNair (3 out of 3 patents)
9. Craig Donald Kemp Green (3 out of 3 patents)
10. Douglas B Flagg (3 out of 5 patents)
11. Tommie Lucas (2 out of 6 patents)
12. Katsumi Hasegawa (2 out of 2 patents)
13. Peter G Kershaw (2 out of 2 patents)
14. Neil Hollis Slater (1 out of 1 patent)
15. Darrell Lewis (1 out of 1 patent)
Core Competencies:
Folding Knife
Safety Lock
Blade Mechanism
Knife Handle
Multi-Tool
Locking Mechanism
Pocket Knife
Knife Blade
Assisted Opening
Carabiner Knife
Mandolin Slicer
Utility Knife
67 patents:
KAI U.S.A., Ltd. is a leading manufacturer and distributor of innovative cutlery and tools based in Tualatin, Oregon. With a rich history of over 100 years, KAI U.S.A. combines traditional Japanese craftsmanship with advanced technology to create high-quality products. Their extensive range includes kitchen knives, professional chef tools, sporting knives, and more. Visit their website to explore their exceptional collection and learn more about their commitment to excellence.
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Please report any incorrect information to [email protected]
Please report any incorrect information to [email protected]