Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11166095 | Headphone speaker system with inner-ear and over-the-ear speakers | — | 2021-11-02 |
| 10221121 | Process for production of a silica-supported alkali metal catalyst | Ian Andrew York | 2019-03-05 |
| 9821304 | Process for the treatment of an ion exchange resin | — | 2017-11-21 |
| 9504991 | Process for production of a silica-supported alkali metal catalyst | Ian Andrew York | 2016-11-29 |
| 8907121 | Methyl methacrylate purification process | David W. Johnson | 2014-12-09 |
| 8835518 | Process for the treatment of an ion exchange resin | — | 2014-09-16 |
| 8592624 | Production of ethylenically unsaturated acids or esters thereof | David W. Johnson | 2013-11-26 |
| 6988248 | Animated indicators that reflect function activity or state of objects data or processes | John C. Tang, Chris Ryan, Ellen Isaacs | 2006-01-17 |
| 6349327 | System and method enabling awareness of others working on similar tasks in a computer work environment | John C. Tang, Ellen Isaacs, Thomas Rodriguez, Alan T. Ruberg, Rick Levenson | 2002-02-19 |
| 5960173 | System and method enabling awareness of others working on similar tasks in a computer work environment | John C. Tang, Ellen Isaacs, Thomas Rodriguez, Alan T. Ruberg, Rick Levenson | 1999-09-28 |
| 5793365 | System and method providing a computer user interface enabling access to distributed workgroup members | John C. Tang, Ellen Isaacs, Thomas Rodriguez, Alan T. Ruberg, Rick Levenson | 1998-08-11 |
| 5442744 | Methods and apparatus for displaying and editing multimedia information | Michael Piech | 1995-08-15 |