Enter assignee name

Trademarks = 3

Forward Citations = 136

Loading Chart...

12 inventors (with patents filed for the assignee):

Donald C Stackhouse (3 out of 3 patents)

W Benjamin Harlamert (3 out of 5 patents)

Loy D Pace (2 out of 2 patents)

4. Earl W Jones (2 out of 3 patents)

5. Dennis S Zimpfer (2 out of 2 patents)

6. David E Ziegler (1 out of 1 patent)

7. Arthur J Bowser (1 out of 1 patent)

8. David F Thompson (1 out of 8 patents)

9. Richard V Grimes (1 out of 4 patents)

10. Mark W Spoltman (1 out of 1 patent)

11. Richard D Bowerman (1 out of 1 patent)

12. Richard L Edinger (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 5061153 - Aircraft propeller assembly with blade pitch reset for ground idle (1991-10-29),

2. 5020741 - Aircraft propeller with improved electrically de-icer leads (1991-06-04),

3. 4904157 - Aircraft propeller assembly with blade pitch reset for ground idle (1990-02-27),

4. 4810167 - Composite aircraft propeller blade (1989-03-07),

5. 4699568 - Aircraft propeller with improved spinner assembly (1987-10-13),

6. 4302155 - Air craft propeller assembly with composite blades (1981-11-24),

7. 4097189 - Aircraft propeller and blade pitch control system (1978-06-27),

Hartzell Propeller is a global leader in the design and manufacturing of high-performance propellers for general aviation, business aviation, and military aircraft. With a long history dating back to 1917, Hartzell Propeller is known for its innovative designs and superior quality products. The company's propellers are used on a wide range of aircraft, from small single-engine planes to large turboprops. Hartzell Propeller is committed to providing customers with the highest level of performance and reliability, backed by exceptional customer service and support.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

7 Patents

#4 in Piqua, OH

#1,512 in Ohio

#38,762 in US

Piqua, OH, United States of America

Hartzell Propeller Inc.