For the Inventor, By the Inventor

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Manchester, IA, United States of America

Henderson Manufacturing Company

USPTO Granted Patents = 12

CIPO Patents = 1

Forward Citations = 169

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24 inventors (with patents filed for the assignee):

Mark Stephen Hollinrake (9 out of 14 patents)

Mart E Ward (4 out of 9 patents)

Mary T Goos (4 out of 4 patents)

4. Timothy Ray Schenk (4 out of 4 patents)

5. Glenn L Ungerer (3 out of 7 patents)

6. Marc E Cabalka (3 out of 4 patents)

7. David Alan Cabalka (3 out of 3 patents)

8. Wade J Burken (2 out of 3 patents)

9. Mike Voorhees (2 out of 2 patents)

10. Lyle Seaman (2 out of 2 patents)

11. Thomas E Amthauer (2 out of 2 patents)

12. Terry J Sommerfelt (2 out of 2 patents)

13. Randall L Smedstad (1 out of 2 patents)

14. Scott G Lueken (1 out of 2 patents)

15. Bill Hintzsche (1 out of 1 patent)

12 patents: Sort by Forward Citations

1. 7530777 - Vehicle with safety interlock system (2009-05-12),

2. 7370818 - Apparatus for treatment of snow and ice (2008-05-13),

3. 7263789 - Plow assembly with adjustable trip mechanism (2007-09-04),

4. 6976740 - Ball screw hoist system for vehicle (2005-12-20),

5. 6945482 - Combination dump and spreader apparatus (2005-09-20),

6. 6895698 - Plow assembly with adjustable trip mechanism (2005-05-24),

7. 6874582 - Plow hitch for vehicle (2005-04-05),

8. 6761525 - Combination dump and spreader apparatus (2004-07-13),

9. 6585472 - Combination dump and spreader apparatus (2003-07-01),

10. 6394735 - Combination dump and spreader apparatus (2002-05-28),

11. 6123276 - Interlock system for spreader bodies (2000-09-26),

12. 6073371 - Snowplow assembly with adjustable-bias trip mechanism (2000-06-13),

Henderson Manufacturing Company is a leading provider of high-quality industrial equipment and machinery. With decades of experience, we specialize in the design and production of custom solutions for a wide range of industries. Our team of skilled engineers and technicians are dedicated to delivering innovative products that meet the unique needs of our customers. At Henderson Manufacturing Company, we are committed to excellence in both product quality and customer service.

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

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USPTO Data Jan 1 1976 - Dec 16 2025

12 Patents

#1 in Manchester, IA

#152 in Iowa

#24,788 in US

#46,685 in the World

Manchester, IA, United States of America

Henderson Manufacturing Company

Forward Citations = 169

24 inventors:

Mark Stephen Hollinrake (9 out of 14 patents)

Mart E Ward (4 out of 9 patents)

Mary T Goos (4 out of 4 patents)

4. Timothy Ray Schenk (4 out of 4 patents)

5. Glenn L Ungerer (3 out of 7 patents)

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