Issued Patents All Time
Showing 26–50 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5427415 | Heat sensitive system and use thereof | — | 1995-06-27 |
| 5401060 | Document with heat and pressure sensitive chromogentic composition thereon | Richard H. Johnson | 1995-03-28 |
| 5401481 | Processes for removing acid components from gas streams | Gary Rochelle, Claus Jorgensen, Theodore G. Brna, Charles B. Sedman, Wojciech Jozewicz | 1995-03-28 |
| 5395138 | Security document verification system with pressure-rupturable microcapsules | — | 1995-03-07 |
| 5344191 | Hidden entry system and use thereof | Peter Walter | 1994-09-06 |
| 5270015 | Apparatus for removing sulfur from sulfur containing gases | Gary Rochelle, Claus Jorgensen, Theodore G. Brna, Charles B. Sedman, Wojciech Jozewicz | 1993-12-14 |
| 5202103 | Removal of sulfur dioxide from gas streams | Leo E. Hakka, Veronique Roy | 1993-04-13 |
| 5100643 | Processes for removing acid components from gas streams | Theodore G. Brna, Charles B. Sedman, Claus Jorgensen, Gary Rochelle | 1992-03-31 |
| 5098774 | Divalent metal salts of sulfonated novolak resins and methods for treating fibrous polyamide materials therewith | — | 1992-03-24 |
| 5047221 | Processes for removing sulfur from sulfur-containing gases | Wojciech Jozewicz, Charles B. Sedman, Theodore G. Brna, Gary Rochelle | 1991-09-10 |
| 5047222 | Process for removing sulfur from sulfur-containing gases: high calcium fly-ash | Gary Rochelle | 1991-09-10 |
| 4937123 | Process for providing polyamide materials with stain resistance | Maynard H. Olson, Imelda A. Muggli | 1990-06-26 |
| 4875901 | Treating fibrous polyamide articles | George L. Payet | 1989-10-24 |
| 4846502 | Tamper evident document and use thereof | Theodore Dimitriou | 1989-07-11 |
| 4822373 | Process for providing polyamide materials with stain resistance with sulfonated novolak resin and polymethacrylic acd | Maynard H. Olson, Imelda A. Muggli | 1989-04-18 |
| 4748267 | Fluorochemical biuret compounds and fibrous substrates treated therewith | — | 1988-05-31 |
| 4668406 | Fluorochemical biuret compositions and fibrous substrates treated therewith | — | 1987-05-26 |
| 4565641 | Blend of fluorochemical guanidines and poly(oxyalkylenes) | Kathryn Williams | 1986-01-21 |
| 4540497 | Fluoroaliphatic radical-containing, substituted guanidines and fibrous substrates treated therewith | Richard D. Howells | 1985-09-10 |
| 4511641 | Metal film imaging structure | Stanley C. Busman | 1985-04-16 |
| 4448445 | Pressure-sensitive record system | Theodore Dimitriou | 1984-05-15 |
| 4426476 | Textile treatments | — | 1984-01-17 |
| 4425386 | Multi-sheet assembly using autogenous coating | — | 1984-01-10 |
| 4317743 | Process for making microcapsules and resulting product | — | 1982-03-02 |
| 4250098 | Chromogenic compounds | — | 1981-02-10 |