| 6231047 |
Brush seal |
Matthew D. Cunningham, Robert Menendez, James A. Henderson, Chih-yuan Shia, William J. Casey |
2001-05-15 |
| 6176323 |
Drilling systems with sensors for determining properties of drilling fluid downhole |
John B. Weirich, Ronald G. Bland, Volker Krueger, John W. Harrell, Hatem Nasr +1 more |
2001-01-23 |
| 4995231 |
Performance arcjet thruster |
Richard D. Smith, Steve Knowles, R. J. Cassady, Mark A. Simon |
1991-02-26 |
| 4926632 |
Performance arcjet thruster |
Richard D. Smith, Steve Knowles, R. J. Cassady, Mark A. Simon |
1990-05-22 |
| 4907407 |
Lifetime arcjet thruster |
Mark A. Simon, Steve Knowles |
1990-03-13 |
| 4882465 |
Arcjet thruster with improved arc attachment for enhancement of efficiency |
Steven C. Knowles |
1989-11-21 |
| 4866929 |
Hybrid electrothermal/electromagnetic arcjet thruster and thrust-producing method |
Steve Knowles |
1989-09-19 |
| 4813025 |
Safety alert and locating system |
David B. Rowland |
1989-03-14 |
| 4800716 |
Efficiency arcjet thruster with controlled arc startup and steady state attachment |
Steven C. Knowles |
1989-01-31 |
| 4480966 |
Apparatus for converting the surface motion of a liquid body into usable power |
— |
1984-11-06 |