For the Inventor, By the Inventor

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Golden, CO, United States of America

Spyderco, Inc.

USPTO Granted Patents = 101

Trademarks = 65

Forward Citations = 2,443

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38 inventors (with patents filed for the assignee):

Louis S Glesser (43 out of 59 patents)

Eric G Glesser (20 out of 22 patents)

Peter H Jhones (4 out of 4 patents)

4. Paul W Alexander (3 out of 187 patents)

5. Tom D Koenig (2 out of 2 patents)

6. Douglas S Snyder (2 out of 2 patents)

7. Martin E Beck (2 out of 7 patents)

8. Vince Ford (2 out of 2 patents)

9. Lance Clinton (2 out of 2 patents)

10. Ed Schempp (2 out of 2 patents)

11. Bram M Frank (2 out of 5 patents)

12. Eduard Bradichansky (2 out of 2 patents)

13. Robert W Lum (2 out of 2 patents)

14. Morton James Barsky, Iv (2 out of 2 patents)

15. Kimiyuki Sakai (1 out of 13 patents)

Core Competencies:

Folding Knife

Fixed Blade Knife

Knife Handle

Locking Mechanism

Rotational Wedge Locking

Blade-Sharpening Apparatus

Traction Surface Mechanism

Modular Spring Assembly

Kinetic Opening Knife

Dual Blade Folding Knife

Multitool Design

Butterfly Knife Handles

101 patents: Sort by Forward Citations

1. 12318953 - Knife with integral sealed power source (2025-06-03),

2. D1057514 - Knife handle (2025-01-14),

3. 12157239 - Knife with integral sealed power source (2024-12-03),

4. D1045568 - Knife handle (2024-10-08),

5. D1013477 - Knife handle (2024-02-06),

6. 11820028 - Folding knife (2023-11-21),

7. D997681 - Stop mechanism for a folding knife (2023-09-05),

8. D983639 - Folding knife handle (2023-04-18),

9. D983009 - Folding knife (2023-04-11),

10. D944055 - Fixed blade knife (2022-02-22),

11. D929808 - Cup (2021-09-07),

12. 11052550 - Folding tool with a traction surface opening mechanism (2021-07-06),

13. D922849 - Folding knife (2021-06-22),

14. D920073 - Folding knife with stop mechanism (2021-05-25),

15. D919401 - Folding knife (2021-05-18),

Spyderco, Inc. is a prominent American knife manufacturer known for producing high-quality, innovative and functional cutlery. Founded in 1976 by Sal Glesser, the company revolutionized the knife industry through their patented round hole opening feature and the pocket clip design. Their wide range of folding knives, fixed-blade knives, sharpeners, and other accessories are cherished by knife enthusiasts, professionals, and collectors worldwide. Spyderco continues to lead the market with their commitment to quality, performance, and relentless innovation.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

101 Patents

#5 in Golden, CO

#63 in Colorado

#3,616 in US

#7,494 in the World

Golden, CO, United States of America

Spyderco, Inc.

Forward Citations = 2,443

38 inventors:

Louis S Glesser (43 out of 59 patents)

Eric G Glesser (20 out of 22 patents)

Peter H Jhones (4 out of 4 patents)

4. Paul W Alexander (3 out of 187 patents)

5. Tom D Koenig (2 out of 2 patents)

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