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For the Inventor, By the Inventor

Lincolnshire, IL, United States of America

Klein Tools, Inc.


USPTO Granted Patents = 111

% Expired Patents = 4.5

Trademarks = 34

Forward Citations = 740

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77 inventors (with patents filed for the assignee):

goldMedal Kingston T Wong (31 out of 32 patents)

silverMedal John H Kargenian (10 out of 11 patents)

bronzeMedal Scott M Hargis (6 out of 6 patents)

4.  Eric Salinas (6 out of 6 patents)

5.  Daniel R Pearson (6 out of 6 patents)

6.  Kevin A Ekdahl (6 out of 6 patents)

7.  Bruce Kuhn (6 out of 6 patents)

8.  Jordan L Fisher (5 out of 5 patents)

9.  Michael D Bronk (5 out of 5 patents)

10.  Bradley Kunas (5 out of 5 patents)

11.  John Hankus (5 out of 5 patents)

12.  Dave Colin Evans (5 out of 5 patents)

13.  Joseph William Banderob (5 out of 5 patents)

14.  Robert C Easton (5 out of 5 patents)

15.  Clayton J Gable (4 out of 4 patents)


Core Competencies:
Multi-Bit Power Driver
Safety Helmet
Circuit Tester
Nut Driver Tool
Laser Marking System
Plier Wrench
Cable Cutter
Impact Device
Voltage Tester
Measuring Tape
Lighting Device
Folding Skinning Knife

111 patents:

1. 12708945 - SYSTEM FOR COLLECTING DEBRIS (2026-08-18),
2. 12613094 - Laser pocket level multi-axis micro adjust (2026-04-28),
3. 12582220 - Pivoting sleever bar holder (2026-03-24),
4. 12571821 - Circuit energization status test device and method (2026-03-10),
5. 12564921 - Flip socket adapters (2026-03-03),
6. 12540807 - Combination square and method of adjusting the same (2026-02-03),
7. 12461152 - Arc fault circuit interrupt tester and method (2025-11-04),
8. 12447590 - Infinitely adjustable driver shank quick connect (2025-10-21),
9. 12415257 - Nut driver tool (2025-09-16),
10. 12370654 - Nested locknut wrench with magnetic hold (2025-07-29),
11. D1078510 - Electrical receptacle tester (2025-06-10),
12. 12325577 - Wire reel storage box (2025-06-10),
13. 12295448 - Safety helmet fan system (2025-05-13),
14. 12268265 - Safety helmet (2025-04-08),
15. 12262776 - Safety helmet accesssory system (2025-04-01),
Klein Tools is a leading manufacturer of professional hand tools and occupational protective equipment. With a commitment to quality, innovation, and excellence, Klein Tools has been providing premium tools for over 160 years. Our extensive range of hand tools includes pliers, screwdrivers, wrenches, wire strippers, and much more, designed to meet the rigorous demands of electricians, HVAC technicians, and other professionals. Visit our website to explore our product catalog, learn about industry trends, and find resources to enhance your workmanship.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 29 2026

Klein Tools, Inc.
111 Patents

#5 in Lincolnshire, IL

#203 in Illinois

#3,451 in US

#7,097 in the World

Lincolnshire, IL (US)
Lincolnshire, IL, United States of America

Klein Tools, Inc.

Forward Citations = 740

77 inventors:

goldMedal Kingston T Wong (31 out of 32 patents)

silverMedal John H Kargenian (10 out of 11 patents)

bronzeMedal Scott M Hargis (6 out of 6 patents)

4.  Eric Salinas (6 out of 6 patents)

5.  Daniel R Pearson (6 out of 6 patents)

Please report any incorrect information to [email protected]
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