For the Inventor, By the Inventor

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Eugene, OR, United States of America

Johnson Crushers International

USPTO Granted Patents = 15

Trademarks = 5

Forward Citations = 133

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18 inventors (with patents filed for the assignee):

Gary Heeszel (7 out of 10 patents)

Lawrence C Olsen (6 out of 6 patents)

Robert Carnes (5 out of 5 patents)

4. James Donald Brock (4 out of 21 patents)

5. Jon Juhlin (4 out of 4 patents)

6. Tom Furrer (3 out of 3 patents)

7. Jeremiah West (2 out of 2 patents)

8. David F Peaks (2 out of 6 patents)

9. Daniel C Drinkwater (2 out of 2 patents)

10. Gerald E Parker (2 out of 8 patents)

11. Roger M Clark (2 out of 7 patents)

12. Mark Westerman (1 out of 1 patent)

13. Benjamin James Boyce (1 out of 2 patents)

14. Bob Stafford (1 out of 1 patent)

15. Kevin Prociw (1 out of 1 patent)

15 patents: Sort by Forward Citations

1. 12311408 - Flexible screen deck (2025-05-27),

2. 10730055 - Method of use of aggregate processing equipment (2020-08-04),

3. 7806948 - Filter system for internal combustion engines operated in a contaminated atmosphere (2010-10-05),

4. 7467756 - Bowl liner movement detection method and apparatus (2008-12-23),

5. 7464889 - Mobile rock crushing plant (2008-12-16),

6. 7264104 - Crusher in-feed conveyor method and apparatus (2007-09-04),

7. 7229040 - Bowl liner retaining method and apparatus (2007-06-12),

8. 7143968 - Mobile rock crushing plant (2006-12-05),

9. 7104482 - Clutch for rock crusher (2006-09-12),

10. 6953121 - Vibrating screen (2005-10-11),

11. 6935587 - Mobile rock crushing plant (2005-08-30),

12. 6889846 - Hybrid screen (2005-05-10),

13. 6386375 - Lubrication system for vibrating flat screens (2002-05-14),

14. 6032886 - Adjustment for rock crusher (2000-03-07),

15. 5950939 - Cone crusher for rock (1999-09-14),

Johnson Crushers International (JCI) specializes in the manufacturing of roller bearing cone crushers, vibrating screens, horizontal and incline screens. They are a part of Astec Industries, a diversified manufacturing and marketing company for industries including construction, mining, energy, and recycling.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

15 Patents

#16 in Eugene, OR

#202 in Oregon

#20,400 in US

#38,669 in the World

Eugene, OR, United States of America

Johnson Crushers International

Forward Citations = 133

18 inventors:

Gary Heeszel (7 out of 10 patents)

Lawrence C Olsen (6 out of 6 patents)

Robert Carnes (5 out of 5 patents)

4. James Donald Brock (4 out of 21 patents)

5. Jon Juhlin (4 out of 4 patents)

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