JD

John K. Donovan

AL Aluminum Ladder: 1 patents #9 of 19Top 50%
📍 Dumfries, VA: #8 of 44 inventorsTop 20%
🗺 Virginia: #12,642 of 34,511 inventorsTop 40%
Overall (All Time): #1,715,024 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12312221 Helical band actuator — 2025-05-27
6390152 Modular bulk material handling station Eugene R. Brown, Ronald W. Bennett 2002-05-21