For the Inventor, By the Inventor

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Pittsburgh, PA, United States of America

Joy Technologies, Inc.

USPTO Granted Patents = 31

Trademarks = 1

Forward Citations = 820

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18 inventors (with patents filed for the assignee):

Edward Wechner (7 out of 10 patents)

Michael L O'Neill (5 out of 33 patents)

Joseph S David (4 out of 8 patents)

4. Dennis Cowles (3 out of 3 patents)

5. Stephen P Moore (2 out of 2 patents)

6. Eugene F Pendolino (2 out of 3 patents)

7. Wayne L Edmondson (2 out of 3 patents)

8. Terry M Thomas (2 out of 11 patents)

9. Roger C Anderson (2 out of 2 patents)

10. Theodore B Bodimer (2 out of 4 patents)

11. Joseph J Zimmerman (1 out of 19 patents)

12. Gary C Marshall (1 out of 2 patents)

13. George A Osterwise (1 out of 1 patent)

14. Neal W Densmore (1 out of 8 patents)

15. Thomas F Sturniolo (1 out of 1 patent)

31 patents: Sort by Forward Citations

1. 5302005 - Apparatus for holding a cutting bit (1994-04-12),

2. 5285736 - Pressure relief apparatus for a vessel (1994-02-15),

3. 5254047 - Chain take-up apparatus (1993-10-19),

4. 5242358 - Machine tool accessory mounting method and apparatus (1993-09-07),

5. 5165766 - Tram chain connection link (1992-11-24),

6. 5163545 - Auxiliary conveying apparatus for use with mobile articulated conveyors (1992-11-17),

7. 5161670 - Auxiliary conveying apparatus for elevationally selectable discharge (1992-11-10),

8. 5156256 - Elevated auxiliary conveying apparatus (1992-10-20),

9. 5106166 - Cutting bit holding apparatus (1992-04-21),

10. 5088797 - Method and apparatus for holding a cutting bit (1992-02-18),

11. 5088594 - Chain and flight conveyor (1992-02-18),

12. 5072826 - Chain conveyor for miner (1991-12-17),

13. 5026218 - Temporary roof support cylinder (1991-06-25),

14. 5011229 - Miner cutting bit holding apparatus (1991-04-30),

15. 5004098 - Conveyor belt (1991-04-02),

Joy Technologies, Inc. is a leading technology company specializing in software development and AI solutions. With a focus on innovation and customer satisfaction, we provide cutting-edge technologies to businesses worldwide. Leveraging our expertise in artificial intelligence, machine learning, and data analytics, we deliver comprehensive solutions that empower organizations to optimize their operations, improve decision-making processes, and achieve sustainable growth. Visit our website to explore our wide range of solutions and learn more about how we can help your business thrive in the digital age.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

31 Patents

#61 in Pittsburgh, PA

#399 in Pennsylvania

#10,543 in US

#20,605 in the World

Pittsburgh, PA, United States of America

Joy Technologies, Inc.

Forward Citations = 820

18 inventors:

Edward Wechner (7 out of 10 patents)

Michael L O'Neill (5 out of 33 patents)

Joseph S David (4 out of 8 patents)

4. Dennis Cowles (3 out of 3 patents)

5. Stephen P Moore (2 out of 2 patents)

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