For the Inventor, By the Inventor

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Clarinda, IA, United States of America

Lisle Corporation

Calculating rank

USPTO Granted Patents = 178

% Expired Patents = 24.2

Trademarks = 13

Forward Citations = 1,948

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81 inventors (with patents filed for the assignee):

Randall J Ploeger (37 out of 37 patents)

James L Pool (32 out of 32 patents)

Michael L Whitehead (23 out of 23 patents)

4. Kevin L Tally (21 out of 24 patents)

5. Scotty R Kurtz (16 out of 16 patents)

6. Danny L Williams (13 out of 13 patents)

7. Joel A Negus (11 out of 12 patents)

8. Marvin C Negley (7 out of 7 patents)

9. John C Lisle (6 out of 6 patents)

10. Merrill R Miller (3 out of 3 patents)

11. Terry K Robins (2 out of 16 patents)

12. Christopher Watson (2 out of 2 patents)

13. Luiz Correa Neto (2 out of 2 patents)

14. Vincent J Urick (2 out of 2 patents)

15. Jason C Jantzer (2 out of 2 patents)

Core Competencies:

Oil Funnel

Brake Pad Spreader

Fuel Line Disconnect

Impact Socket

Tool Kit

Seized Fastener

Pliers Rack

Vehicle Crankcase

Hose Clamp

Universal Wrench

Oxygen Sensor

LED Flashlight

178 patents: Sort by Forward Citations

1. 12358107 - Hub remover tool (2025-07-15),

2. 11808403 - Magnetic funnel holder (2023-11-07),

3. 11117246 - Truck anchor pin bushing driver (2021-09-14),

4. 10450180 - Multi-application oil funnel construction for refilling crankcases through a filling port (2019-10-22),

5. D861053 - Adapter for connecting a funnel to filling port of a vehicle crankcase (2019-09-24),

6. 10307895 - Extended impact socket construction (2019-06-04),

7. D828752 - Adapter for connecting a funnel to filling port of a vehicle crankcase (2018-09-18),

8. D828751 - Adapter for connecting a funnel to filling port of a vehicle crankcase (2018-09-18),

9. 10040176 - Extended impact socket construction (2018-08-07),

10. 9970965 - Direct current digital voltage display and polarity circuit tester (2018-05-15),

11. 9928938 - Parasitic battery drain test assembly for multiple component vehicle circuitry analysis (2018-03-27),

12. D811841 - Fuel line disconnect pliers (2018-03-06),

13. D811303 - Adapter for connecting a funnel to filling port of a vehicle radiator (2018-02-27),

14. D804945 - Adapter for connecting a funnel to filling port of a vehicle crankcase (2017-12-12),

15. D803050 - Adapter for connecting a funnel to filling port of a vehicle crankcase (2017-11-21),

Company Overview

Lisle Corporation is a prominent manufacturer based in Clarinda, Iowa, specializing in automotive tools designed to enhance vehicle maintenance and repair. The company focuses on developing innovative solutions such as oil funnels, brake pad spreaders, fuel line disconnect tools, and impact sockets. With a commitment to quality and functionality, Lisle's products cater to both professional mechanics and automotive enthusiasts, ensuring efficient and effective service in various automotive applications.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

178 Patents

#1 in Clarinda, IA

#13 in Iowa

#2,273 in US

#4,689 in the World

Clarinda, IA, United States of America

Lisle Corporation

Forward Citations = 1,948

81 inventors:

Randall J Ploeger (37 out of 37 patents)

James L Pool (32 out of 32 patents)

Michael L Whitehead (23 out of 23 patents)

4. Kevin L Tally (21 out of 24 patents)

5. Scotty R Kurtz (16 out of 16 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Lisle Corporation. Retrieved from https://idiyas.com/company/lisle

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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