Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7708863 | Process for molding a friction wafer | Angela Petroski, Samuel Truncone, Hualin Jiang | 2010-05-04 |
| 6979256 | Retaining ring with wear pad for use in chemical mechanical planarization | Richard D. Cooper, Paul Fathauer, Angela Mroczek-Petroski, David Perry | 2005-12-27 |
| 6964601 | Method for securing a polishing pad to a platen for use in chemical-mechanical polishing of wafers | Angela Petroski, Richard D. Cooper, Paul Fathauer, David Perry | 2005-11-15 |
| 6899610 | Retaining ring with wear pad for use in chemical mechanical planarization | Richard D. Cooper, Paul Fathauer, Angela Mroczek-Petroski, David Perry | 2005-05-31 |
| 5454454 | Polygonal friction disk and method | John J. Easton, James J. Petroski | 1995-10-03 |
| 4644820 | Geared-neutral continuously variable transmission | Hamid Vahabzadeh | 1987-02-24 |