Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| D297688 | Stackable drawer file | Monte L. Levin, Andrzej L. Soporowski, Michael D. Jones | 1988-09-20 | |
| D294665 | Storage rack | — | 1988-03-15 | |
| 4728159 | Stackable file storage unit | Monte L. Levin, Andrzej L. Soporowski, Michael D. Jones | 1988-03-01 | |
| 4714165 | Storage rack | — | 1987-12-22 | |
| D289181 | Rack for hanging folders | — | 1987-04-07 | |
| 4601398 | Frame for hanging files | — | 1986-07-22 | |
| 4568052 | Apparatus for supporting an object in a desired position | Robert E. Hawes, Jr., Manfred O. Herbst, William G. Eckert | 1986-02-04 | |
| 4505388 | Expandable portable file | — | 1985-03-19 | |
| 4448616 | Process for reducing backmixing | Arthur W. Francis, Jr., Mark S. Nowotarski | 1984-05-15 | $5,695,000 |
| 4325595 | Card file | — | 1982-04-20 | |
| 4306919 | Process for carburizing steel | Raymond P. Roberge | 1981-12-22 | $4,026,000 |
| 4267656 | Copy holder | — | 1981-05-19 | |
| 4222190 | Device for holding flip cards | — | 1980-09-16 | |
| 4202755 | Catalytic method for making pitch | Gerald Spiegelman, Harry B. Nickles | 1980-05-13 | $1,532,000 |