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For the Inventor, By the Inventor

Tonawanda, NY, United States of America

Columbus Mckinnon Corporation


USPTO Granted Patents = 82

% Expired Patents = 1.2


Trademarks = 35

Forward Citations = 674

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83 inventors (with patents filed for the assignee):

goldMedal Kenneth D Schreyer (24 out of 26 patents)

silverMedal William P Wells, Jr (5 out of 5 patents)

bronzeMedal Michael D Olson (4 out of 5 patents)

4.  Otmar M Ulbing (4 out of 13 patents)

5.  Thomas A Mefferd (4 out of 4 patents)

6.  Robert O Braesch (4 out of 4 patents)

7.  Edward R Behnke (4 out of 4 patents)

8.  Robert H Broyden (4 out of 5 patents)

9.  John Dicky (4 out of 4 patents)

10.  Daniel A Mast, Jr (3 out of 3 patents)

11.  Peter L Hong (3 out of 3 patents)

12.  James J Pancook (3 out of 4 patents)

13.  Earl T Leverentz (3 out of 3 patents)

14.  Thomas R Nusz (3 out of 3 patents)

15.  Edmund R Koval (3 out of 3 patents)


Core Competencies:
Cable Trolley System
Ratcheting Binder
Rope Defect Sensing
Hoist System
Load Pin Retention
Actuator Control Circuit
Pneumatic Powered Hoist
Chain Hook
Electric Hoist
Material Lifting
Overload Prevention Clutch
Telescoping Turnbuckle

82 patents:

1. 12584569 - Expandable cable trolley system (2026-03-24),
2. 12502754 - Gearless ratcheting binder (2025-12-23),
3. 12366553 - Integrated rope defect sensing system (2025-07-22),
4. 12344157 - Slip grab ratchet binder (2025-07-01),
5. 12331808 - Multi-attachment lever binder (2025-06-17),
6. 12326165 - Spring latch for a hook (2025-06-10),
7. 12031609 - Long reach ratchet binder (2024-07-09),
8. 11926508 - Retaining mechanism for a load pin on a clevis hook assembly (2024-03-12),
9. 11808327 - Linear actuator with an integrated variable frequency drive (2023-11-07),
10. 11390493 - Safety latch for a hook (2022-07-19),
11. 10549964 - Manual hoist with automatic speed change device (2020-02-04),
12. 9944500 - Material lifting system and method (2018-04-17),
13. 9488232 - Externally adjustable clutch (2016-11-08),
14. 9331608 - Actuator control circuit (2016-05-03),
15. D712243 - Wire rope bundling clip (2014-09-02),
Columbus McKinnon Corporation, headquartered in Tonawanda, NY, specializes in material handling solutions that enhance safety and efficiency across various industries. The company develops and manufactures a range of products, including cable trolley systems, hoist systems, and pneumatic powered hoists, focusing on innovative technologies such as ratcheting binders and load pin retention. With a commitment to quality and performance, Columbus McKinnon serves diverse markets, providing essential tools for lifting and moving heavy loads.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Columbus Mckinnon Corporation
82 Patents

#1 in Tonawanda, NY

#271 in New York

#4,522 in US

#9,246 in the World

Tonawanda, NY (US)
Tonawanda, NY, United States of America

Columbus Mckinnon Corporation

Forward Citations = 674

83 inventors:

goldMedal Kenneth D Schreyer (24 out of 26 patents)

silverMedal William P Wells, Jr (5 out of 5 patents)

bronzeMedal Michael D Olson (4 out of 5 patents)

4.  Otmar M Ulbing (4 out of 13 patents)

5.  Thomas A Mefferd (4 out of 4 patents)

Please report any incorrect information to [email protected]
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