DZ

Dennis S. Zimpfer

HP Hartzell Propeller: 2 patents #2 of 12Top 20%
📍 Piqua, OH: #36 of 121 inventorsTop 30%
🗺 Ohio: #30,338 of 73,341 inventorsTop 45%
Overall (All Time): #2,319,722 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5061153 Aircraft propeller assembly with blade pitch reset for ground idle Loy D. Pace, Donald C. Stackhouse, Earl W. Jones 1991-10-29
4904157 Aircraft propeller assembly with blade pitch reset for ground idle Loy D. Pace, Donald C. Stackhouse, Earl W. Jones 1990-02-27