RS

Robert L. Siewert

CM Clark Michigan: 2 patents #1 of 5Top 20%
TR Trackmobile: 2 patents #5 of 19Top 30%
CE Clark Equipment: 1 patents #215 of 416Top 55%
📍 Benton Harbor, MI: #55 of 238 inventorsTop 25%
🗺 Michigan: #13,574 of 86,293 inventorsTop 20%
Overall (All Time): #768,552 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
4942826 Vehicle having variable gauge rail wheels Warren R. Erickson 1990-07-24
4878436 Railcar moving vehicle Richard L. Lich 1989-11-07
4635497 Single lever shift Edmund K. Varnelis 1987-01-13
4630698 Self-storing side panel Edmund K. Varnelis 1986-12-23
4629350 Tolerance compensating joint Edmund K. Varnelis 1986-12-16
4607977 Pivot joint Edmund K. Varnelis 1986-08-26
4507005 Pivot joint Edmund K. Varnelis 1985-03-26