Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7686821 | Apparatus and method for positive closure of an internal tissue membrane opening | David Hathaway, Keith L. March | 2010-03-30 |
| 7670349 | Apparatus and method for positive closure of an internal tissue membrane opening | David Hathaway, Keith L. March | 2010-03-02 |
| 7234988 | Enhanced expressive feature mechanism for animated characters and devices | — | 2007-06-26 |
| 7060078 | Apparatus and method for positive closure of an internal tissue membrane opening | David Hathaway, Keith L. March | 2006-06-13 |
| 7021988 | Expressive feature mechanism for animated characters and devices | — | 2006-04-04 |
| 6348059 | Apparatus and method for positive closure of an internal tissue membrane opening | David Hathaway, Keith L. March | 2002-02-19 |
| 6132440 | Apparatus and method for positive closure of an internal tissue membrane opening | David Hathaway, Keith L. March | 2000-10-17 |
| 5810850 | Apparatus and method for positive closure of an internal tissue membrane opening | David Hathaway, Keith L. March | 1998-09-22 |
| 5720757 | Apparatus and method for positive closure of an internal tissue membrane opening | David Hathaway, Keith L. March | 1998-02-24 |
| 5705133 | Stationary screen extractor | Timothy G. Kemper, Allan L. Monroe, Tony L. Ritter, Kenneth R. Frodge | 1998-01-06 |
| 5476469 | Apparatus and method for positive closure of an internal tissue membrane opening | David Hathaway, Keith L. March | 1995-12-19 |
| 5304184 | Apparatus and method for positive closure of an internal tissue membrane opening | David Hathaway, Keith L. March | 1994-04-19 |
| 5116864 | Method for preventing restenosis following reconfiguration of body vessels | Keith L. March, David R. Hathaway, Robert L. Wilensky | 1992-05-26 |