DP

Donald R. Prindle

LO Lord: 6 patents #58 of 448Top 15%
Overall (All Time): #885,317 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6158470 Two-way magnetorheological fluid valve assembly and devices utilizing same Douglas E. Ivers, J. David Carlson, Mark R. Jolly, Michael J. Chrzan, Kenneth A. St. Clair 2000-12-12
6131709 Adjustable valve and vibration damper utilizing same Mark R. Jolly, J. David Carlson 2000-10-17
6095486 Two-way magnetorheological fluid valve assembly and devices utilizing same Douglas E. Ivers, J. David Carlson, Mark R. Jolly, Michael J. Chrzan, Kenneth A. St. Clair 2000-08-01
5878851 Controllable vibration apparatus J. David Carlson, Kenneth A. St. Clair, Michael J. Chrzan 1999-03-09
5842547 Controllable brake J. David Carlson, Douglas F. LeRoy, John C. Holzheimer, Robert H. Marjoram 1998-12-01
5207774 Valving for a controllable shock absorber Paul T. Wolfe, Leonard J. Schwemmer, Charles B. Tidwell 1993-05-04