Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11031048 | Devices with a snap-fit engagement and related methods | YiChao Ma, Christopher M. Woldemar, Iraj Jabbari | 2021-06-08 |
| 10998009 | Air turbulence control for actuators | YiChao Ma, Yimin Niu, Xiong Liu | 2021-05-04 |
| 10734035 | Humidity control system for heat-assisted magnetic recording hard disk drive | Hao Sun, Noppavit Yongrattana, Yap Pow Ming | 2020-08-04 |
| 10274087 | Reverse pressure capable mechanical seal | — | 2019-04-30 |
| 9528885 | Wireless sensor for rotating elements | Lokesh Anilkumar Gupta, Dimitrios Peroulis | 2016-12-27 |
| 9383017 | Tapered channel macro/micro feature for mechanical face seals | Joshua K. Benedict, John Davis | 2016-07-05 |
| 8955850 | Abeyance seal for high temperature, high pressure applications | James D. Saucerman, Ronald L. Grace, John Davis, David Zegres | 2015-02-17 |
| 8665555 | Disk drive with added external labyrinth path during servo track writing | John R. Gustafson, Scott E. Watson, Dana C. Fisher, Brian L. Rappel, Andrew A. Lucas | 2014-03-04 |
| 8250757 | Laser surface treatment for mechanical seal faces | — | 2012-08-28 |
| 8240672 | Low breakout friction energized gasket | Ronald L. Grace | 2012-08-14 |
| 7194803 | Seal ring and method of forming micro-topography ring surfaces with a laser | Jeffery R. Staloch | 2007-03-27 |
| 6446976 | Hydrodynamic face seal with grooved sealing dam for zero-leakage | William E. Key | 2002-09-10 |
| 6296254 | Mechanical seal assembly with improved fluid circulation | — | 2001-10-02 |
| 5947481 | Wavy face ring | — | 1999-09-07 |
| 5833518 | Method for forming a wavy face ring | — | 1998-11-10 |
| 4887395 | Wavy-tilt-dam seal ring and apparatus for shaping seal rings | Alan O. Lebeck | 1989-12-19 |
| 4836561 | Wavy-tilt-dam seal ring | Alan O. Lebeck | 1989-06-06 |
| 4792146 | Radially compliant - zero net thermal radial taper mechanical face seal | Alan O. Lebeck | 1988-12-20 |