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For the Inventor, By the Inventor

Eugene, OR, United States of America

Johnson Crushers International


USPTO Granted Patents = 15

% Expired Patents = 6.7

Trademarks = 1

Forward Citations = 135

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18 inventors (with patents filed for the assignee):

goldMedal Gary Heeszel (7 out of 10 patents)

silverMedal Lawrence C Olsen (6 out of 6 patents)

bronzeMedal 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:

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),
Company Overview
Johnson Crushers International, based in Eugene, Oregon, specializes in the design and manufacturing of equipment for the aggregate and mining industries. The company is known for its innovative solutions in crushing and screening technology, providing high-quality products that enhance operational efficiency. With a focus on engineering excellence, Johnson Crushers International serves a diverse clientele, contributing to advancements in material processing and handling across various sectors.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

15 Patents

#15 in Eugene, OR

#210 in Oregon

#21,052 in US

#39,921 in the World

Eugene, OR (US)
Eugene, OR, United States of America

Johnson Crushers International

Forward Citations = 135

18 inventors:

goldMedal Gary Heeszel (7 out of 10 patents)

silverMedal Lawrence C Olsen (6 out of 6 patents)

bronzeMedal Robert Carnes (5 out of 5 patents)

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

5.  Jon Juhlin (4 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Johnson Crushers International. Retrieved from https://idiyas.com/company/johnson-crushers-international

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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