For the Inventor, By the Inventor

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Ashland, OR, United States of America

Darex Corporation

USPTO Granted Patents = 85

% Expired Patents = 1.2

EPO Patents = 3

Trademarks = 24

Forward Citations = 379

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25 inventors (with patents filed for the assignee):

Daniel T Dovel (46 out of 52 patents)

Joseph T Zachariasen (21 out of 31 patents)

Conner S MacFarlane (21 out of 21 patents)

4. Steven Lee Baker (18 out of 18 patents)

5. Jacob D Dovel (9 out of 9 patents)

6. David A Bernard (7 out of 9 patents)

7. Travis Campbell (6 out of 6 patents)

8. William C Christian (4 out of 5 patents)

9. Richard Allen Bernard (4 out of 4 patents)

10. Arthur Alexander Bernard (3 out of 3 patents)

11. Conner Samuel Macfarlane (3 out of 3 patents)

12. Michael Edward Laut (2 out of 17 patents)

13. Steven Bockmann (2 out of 4 patents)

14. Daniel Riegels (2 out of 4 patents)

15. Matthew S Ferdinand (2 out of 2 patents)

Core Competencies:

Cutting Tool

Knife Sharpener

Powered Sharpener

Abrasive Belt

Hand-Held Sharpener

Adjustable Support

Multi-Stage Sharpening

Precision Drill Sharpener

Rotatable Edge Guide

Utility Blades

Folding Knife

Abrasive Block

85 patents: Sort by Forward Citations

1. D1138633 - Knife sharpener handle (2026-08-04),

2. D1136856 - Knife sharpener (2026-07-28),

3. D1129228 - Tool sharpener (2026-06-09),

4. D1119293 - Tool sheath (2026-03-24),

5. D1116703 - Knife sharpener (2026-03-10),

6. D1104693 - Tool sharpener (2025-12-09),

7. 12447573 - Tool sharpener with concave sharpening surface (2025-10-21),

8. D1087714 - Knife sharpener (2025-08-12),

9. 12246465 - Folding knife, folding knife kit, knife kit, and methods (2025-03-11),

10. D1056844 - Power sharpener (2025-01-07),

11. D1054822 - Clamp for a sharpening device used to sharpen a cutting tool (2024-12-24),

12. D1054269 - Knife sharpener (2024-12-17),

13. D1044460 - Abrasive block support (2024-10-01),

14. 12083696 - Knife with sliding gear (2024-09-10),

15. 12048979 - Rotatable edge guide to support a cutting tool during a sharpening operation (2024-07-30),

Darex Corporation is a leading manufacturer of professional sharpening systems and industrial drill sharpeners. With over 40 years of experience, Darex has established itself as a trusted name in the sharpening industry. They offer a wide range of innovative products designed to meet the sharpening needs of individuals, businesses, and industries. Darex's commitment to quality and customer satisfaction has made them a preferred choice for professionals worldwide.

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

Company Badge

USPTO Data Jan 1 1976 - Sep 15 2026

Darex Corporation

85 Patents

#1 in Ashland, OR

#53 in Oregon

#4,370 in US

#8,937 in the World

Ashland, OR, United States of America

Darex Corporation

Forward Citations = 379

25 inventors:

Daniel T Dovel (46 out of 52 patents)

Joseph T Zachariasen (21 out of 31 patents)

Conner S MacFarlane (21 out of 21 patents)

4. Steven Lee Baker (18 out of 18 patents)

5. Jacob D Dovel (9 out of 9 patents)

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