Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9819828 | Non-printing dot halftone patterns | — | 2017-11-14 |
| 9307119 | Systems and methods for computation-efficient image processing system architecture | Xing Li, David J. Metcalfe, Meng Yao, Paul W. Phillippi | 2016-04-05 |
| 9013756 | Blended halftone with mixed dot sizes for object oriented halftones | — | 2015-04-21 |
| 8368959 | Method and system for selective smoothing of halftoned objects using bitmap encoding | — | 2013-02-05 |
| 8228561 | Method and system for selective bitmap edge smoothing | — | 2012-07-24 |
| 8149454 | Color printing | Meng Yao, Michael T. Stevens, Paul W. Philippi | 2012-04-03 |
| 7511858 | Method for printing a visual printer calibration test pattern | Audrey Ann Lester | 2009-03-31 |
| 7255162 | Methods and apparatus for use in subterranean cementing operations | David D. Szarka, Kevin T. Berscheidt, Henry E. Rogers, Brett Fears | 2007-08-14 |
| 7108068 | Floating plate back pressure valve assembly | Earl Webb | 2006-09-19 |
| 6997253 | Anti-rotation method and apparatus for limiting rotation of cementing plugs | Earl Webb, John C. Zimmerman | 2006-02-14 |
| 6896051 | Anti-rotation method and apparatus for limiting rotation of cementing plugs | Earl Webb, Steven L. Holden | 2005-05-24 |
| 6820695 | Snap-lock seal for seal valve assembly | Earl Webb, Aimee Greening | 2004-11-23 |
| 6796377 | Anti-rotation apparatus for limiting rotation of cementing plugs | Charles Butterfield, Henry E. Rogers, Earl Webb | 2004-09-28 |
| 6637609 | Portable storage apparatus | — | 2003-10-28 |
| 5289580 | Programmable multiple I/O interface controller | Farrukh Amjad Latif, John A. Moysey, Michael Shinkarovsky, Hung Thai Nguyen, Michele Z. Dale | 1994-02-22 |
| 5137243 | Holding device for a tapered shaft and method of holding a tapered shaft | Dan D. Stevens, Lawrence E. Stevens | 1992-08-11 |
| 5070477 | Port adapter system including a controller for switching channels upon encountering a wait period of data transfer | Farrukh Amjad Latif | 1991-12-03 |
| D303274 | Kite string rider toy | — | 1989-09-05 |