David Ewing

KO Kone: 1 patents #1 of 7Top 15%

📍 Houston, TX: #236 of 987 inventorsTop 25%

🗺 Texas: #1,330 of 5,527 inventorsTop 25%

Overall (1994): #146,076 of 165,921Top 90%

Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5280880	Unitary hoist drum for hoist ropes and an electric cable	Vernon C. Dotson	1994-01-25