Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8028441 | Interchangeable component shoe system | — | 2011-10-04 |
| 7669352 | Interchangeable component shoe system | — | 2010-03-02 |
| 5838595 | Apparatus and method for model based process control | Michael Francis Sullivan, Judith S. Hirsch, Stephanie W. Butler, Nicholas John Tovell, Purnendu K. Mozumder +3 more | 1998-11-17 |
| 5402367 | Apparatus and method for model based process control | Michael Francis Sullivan, Judith S. Hirsch, Stephanie W. Butler, Nicholas John Tovell, Purnendu K. Mozumder +3 more | 1995-03-28 |
| 5399229 | System and method for monitoring and evaluating semiconductor wafer fabrication | Stephanie W. Butler | 1995-03-21 |