Issued Patents All Time
Showing 51–64 of 64 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4914817 | Razor head with riblets | John D. Galligan | 1990-04-10 |
| 4908082 | Method for in-situ repair of solvent dewaxing filter cloths | Patrick C. Ewener, Duncan J. Bristow, Scott W. Armstrong, Louis C. Dallaire | 1990-03-13 |
| 4908319 | Laboratory apparatus | Peter J. Smyczek | 1990-03-13 |
| 4761229 | Multi-leaf membrane module | Medi M. Hafez | 1988-08-02 |
| 4715960 | Method for the modification of polycarbonate membranes, the membranes produced by such method and their use | — | 1987-12-29 |
| 4649169 | Crosslinked vinyl polymer compositions and process for preparing molded shaped articles | Christopher B. Keogh | 1987-03-10 |
| 4551326 | Process for preparing alkali metal ferrates | — | 1985-11-05 |
| 4545974 | Process for producing alkali metal ferrates utilizing hematite and magnetite | — | 1985-10-08 |
| 4514184 | Leather treatment composition and leather treating | — | 1985-04-30 |
| 4510047 | Selective extraction solvent recovery using regenerated cellulose membrane under reverse osmosis conditions | — | 1985-04-09 |
| 4491645 | Leather treatment composition | — | 1985-01-01 |
| 4432866 | Membrane separation process | Theodore H. West | 1984-02-21 |
| 4385045 | Process for producing alkali metal ferrates | — | 1983-05-24 |
| 4368112 | Solvent recovery from foots oil using modified regenerated cellulose membranes | David H. Shaw, David A. Gudelis | 1983-01-11 |