Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6666095 | Ultrasonic pipe assessment | Graham H. Thomas, Valerie L. Morrow, Harold W. Levie, Ronald J. Kane | 2003-12-23 |
| 6109109 | High energy, low frequency, ultrasonic transducer | — | 2000-08-29 |
| 4828638 | Thermographic transfer elements and methods | — | 1989-05-09 |
| 4726864 | Hectograph master webs and sheets, and method | Robert T. Emerson | 1988-02-23 |
| 4499140 | Pressure-sensitive transfer elements and method | Robert T. Emerson | 1985-02-12 |
| 4321286 | Process for producing transfer ribbons | Michael A. Scott | 1982-03-23 |
| 4217388 | Pressure-sensitive transfer elements and process | Michael A. Scott, Edward Young | 1980-08-12 |