Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9816617 | Magnetic fluid seal with precise control of fluid volume at each seal stage | David G. Mahoney | 2017-11-14 |
| 9163732 | Magnetic fluid seal with precise control of fluid volume at each seal stage | David G. Mahoney | 2015-10-20 |
| 8720900 | Magnetic fluid seal with shunt element | — | 2014-05-13 |
| 8430409 | Magnetic fluid seal with precise control of fluid volume at each seal stage | David G. Mahoney | 2013-04-30 |
| 8382118 | Magnetic fluid seal with centering of bearing and shaft by compressible member | David G. Mahoney | 2013-02-26 |
| 6199867 | Rotary motion feedthrough device | David G. Mahoney | 2001-03-13 |
| 5975536 | Rotary motion feedthrough with rotating magnet system | — | 1999-11-02 |
| 5826885 | Magnetic fluid sealing device | — | 1998-10-27 |
| 4663128 | Pulling head for a crystal growing furnace | — | 1987-05-05 |
| 4350560 | Apparatus for and method of handling crystals from crystal-growing furnaces | Alex Teverovsky, Kenneth H. Kerwin, II, Carl Chartier | 1982-09-21 |