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For the Inventor, By the Inventor

Ashland, OR, United States of America

Darex Corporation


USPTO Granted Patents = 86

% Expired Patents = 1.2


Trademarks = 24

Forward Citations = 379

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25 inventors (with patents filed for the assignee):

goldMedal Daniel T Dovel (46 out of 52 patents)

silverMedal Joseph T Zachariasen (22 out of 32 patents)

bronzeMedal 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

86 patents:

1. D1149605 - Knife (2026-09-29),
2. D1138633 - Knife sharpener handle (2026-08-04),
3. D1136856 - Knife sharpener (2026-07-28),
4. D1129228 - Tool sharpener (2026-06-09),
5. D1119293 - Tool sheath (2026-03-24),
6. D1116703 - Knife sharpener (2026-03-10),
7. D1104693 - Tool sharpener (2025-12-09),
8. 12447573 - Tool sharpener with concave sharpening surface (2025-10-21),
9. D1087714 - Knife sharpener (2025-08-12),
10. 12246465 - Folding knife, folding knife kit, knife kit, and methods (2025-03-11),
11. D1056844 - Power sharpener (2025-01-07),
12. D1054822 - Clamp for a sharpening device used to sharpen a cutting tool (2024-12-24),
13. D1054269 - Knife sharpener (2024-12-17),
14. D1044460 - Abrasive block support (2024-10-01),
15. 12083696 - Knife with sliding gear (2024-09-10),
Darex Corporation, headquartered in Ashland, Oregon, specializes in cutting tool sharpening technologies. The company develops a range of innovative sharpening solutions, including powered sharpeners and hand-held devices, designed to enhance the performance and longevity of cutting tools. Their expertise encompasses multi-stage sharpening systems and precision drill sharpeners, catering to both professional and consumer markets. Darex is committed to advancing the art of tool maintenance, ensuring users achieve optimal results with their cutting instruments.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

Darex Corporation
86 Patents

#1 in Ashland, OR

#53 in Oregon

#4,334 in US

#8,861 in the World

Ashland, OR (US)
Ashland, OR, United States of America

Darex Corporation

Forward Citations = 379

25 inventors:

goldMedal Daniel T Dovel (46 out of 52 patents)

silverMedal Joseph T Zachariasen (22 out of 32 patents)

bronzeMedal 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)

Please report any incorrect information to [email protected]
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