For the Inventor, By the Inventor

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Lincolnshire, IL, United States of America

Klein Tools, Inc.

USPTO Granted Patents = 105

Trademarks = 57

Forward Citations = 695

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73 inventors (with patents filed for the assignee):

Kingston T Wong (31 out of 32 patents)

John H Kargenian (10 out of 11 patents)

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:

Arc Fault Circuit Interrupt Tester

Infinitely Adjustable Driver Shank

Nested Locknut Wrench

Wire Reel Storage Box

Electrical Receptacle Tester

Safety Helmet Fan System

Glow Fish Tape System

Multifunction Socket Tool

Anti-Dogleg Electronic Measurement Device

Powered Fastening Device

Manual Conduit Bender

Lighting Device for Aerial Work Platform

105 patents: Sort by Forward Citations

1. 12461152 - Arc fault circuit interrupt tester and method (2025-11-04),

2. 12447590 - Infinitely adjustable driver shank quick connect (2025-10-21),

3. 12415257 - Nut driver tool (2025-09-16),

4. 12370654 - Nested locknut wrench with magnetic hold (2025-07-29),

5. D1078510 - Electrical receptacle tester (2025-06-10),

6. 12325577 - Wire reel storage box (2025-06-10),

7. 12295448 - Safety helmet fan system (2025-05-13),

8. 12268265 - Safety helmet (2025-04-08),

9. 12262776 - Safety helmet accesssory system (2025-04-01),

10. 12251799 - Multiple-bit hand tool including power nut/bit driver (2025-03-18),

11. 12246899 - Combination square packaging (2025-03-11),

12. 12241585 - J-hook bracket mount location markers (2025-03-04),

13. 12187573 - Glow fish tape system (2025-01-07),

14. 12179317 - Nested locknut wrench with magnetic hold (2024-12-31),

15. D1055340 - Flashlight (2024-12-24),

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.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

105 Patents

#4 in Lincolnshire, IL

#212 in Illinois

#3,483 in US

#7,239 in the World

Lincolnshire, IL, United States of America

Klein Tools, Inc.

Forward Citations = 695

73 inventors:

Kingston T Wong (31 out of 32 patents)

John H Kargenian (10 out of 11 patents)

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)

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