Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5915283 | Metallic sheet insulation system | Robert L. Danley, John W. Schaefer | 1999-06-22 |
| 5710426 | Dynamic and thermal mechanical analyzer having an optical encoder with diffraction grating and a linear permanent magnet motor | Robert L. Danley, John R. Reader, Jr., John W. Schaefer | 1998-01-20 |
| 5321719 | Thermogravimetric apparatus | Michael J. Levchak, John W. Schaefer | 1994-06-14 |