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Spokane, WA, United States of America

R. A. Hanson Company, Inc.

USPTO Granted Patents = 11

Forward Citations = 102

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13 inventors (with patents filed for the assignee):

Raymond A Hanson (6 out of 15 patents)

Wayne F Crockett (3 out of 3 patents)

Matthew F Russell (1 out of 21 patents)

4. Gerald Kaschmitter (1 out of 1 patent)

5. Kenneth A Pfaff (1 out of 1 patent)

6. Robert L Bird (1 out of 1 patent)

7. Robert D Walker (1 out of 1 patent)

8. Thomas W Steele (1 out of 1 patent)

9. Randy S Peterson (1 out of 1 patent)

10. Richard W Hanson (1 out of 3 patents)

11. Bryon M Kanenwischer (1 out of 1 patent)

12. R A Hanson (1 out of 1 patent)

13. Jerry Morton (1 out of 1 patent)

11 patents: Sort by Forward Citations

1. 6185847 - Continuous shovel (2001-02-13),

2. 5749452 - Mobile conveyor including alignment system (1998-05-12),

3. 5590482 - Excavator and earthen material excavator bucket apparatus (1997-01-07),

4. 5415586 - Combine harvester leveling system, combine harvester header adjusting (1995-05-16),

5. 5203461 - Mineral jig apparatus (1993-04-20),

6. 4999934 - Dredging apparatus (1991-03-19),

7. 4871213 - Excavating apparatus with adjustable breaker bar (1989-10-03),

8. 4858347 - Continuous excavating apparatus and methods (1989-08-22),

9. 4849097 - Cam actuated mineral jig (1989-07-18),

10. 4785560 - Continuous excavating apparatus (1988-11-22),

11. 4324539 - Concrete pressure monitoring device for monolithic concrete structure (1982-04-13),

R. A. Hanson Company, Inc. is a leading provider of plumbing, heating, and HVAC services in the Midwest region. With over 50 years of experience, our team of professionals is dedicated to delivering high-quality workmanship and exceptional customer service. We specialize in residential and commercial projects, offering a wide range of services including installation, repair, and maintenance. Contact us today for all your plumbing, heating, and HVAC needs.

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

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USPTO Data Jan 1 1976 - Dec 16 2025

11 Patents

#25 in Spokane, WA

#594 in Washington

#26,697 in US

#50,196 in the World

Spokane, WA, United States of America

R. A. Hanson Company, Inc.

Forward Citations = 102

13 inventors:

Raymond A Hanson (6 out of 15 patents)

Wayne F Crockett (3 out of 3 patents)

Matthew F Russell (1 out of 21 patents)

4. Gerald Kaschmitter (1 out of 1 patent)

5. Kenneth A Pfaff (1 out of 1 patent)

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