Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8484556 | Drawing interoperability between different computer-aided design applications | Robert W. McMillan, Narayanan Vinay Krishnan, Prabakar Murugappan | 2013-07-09 |
| 7168012 | Error handling and representation in a computer-aided design environment | Kevin M. Linscott, David J. Ford | 2007-01-23 |
| 6888542 | Error recovery in a computer aided design environment | — | 2005-05-03 |
| 6363503 | Error handling and representation in a computer-aided design environment | Kevin M. Linscott, David J. Ford | 2002-03-26 |