Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5427717 | Secondary alkyl sulfate/zeolite-containing surfactant compositions | David K. Schisla, Robert Stephen Tomaskovic, Eugene F. Lutz | 1995-06-27 |
| 5129766 | Aeration tube discharge control device | Hendricus A. Dirkse, Johannes E. G. Ploeg, Rene Rombout, Rudi Everts, Andrew M. Scott +2 more | 1992-07-14 |
| 5106240 | Aerated discharge device | Hendricus A. Dirkse, Andrew M. Scott, Thomas S. Dewitz, Rene Rombout, Uday Mahagaokar +1 more | 1992-04-21 |
| 4969933 | Process for flyslag treatment utilizing a solids-containing concentrated aqueous stream | Edward H. Hsu, Daniel C. Baker | 1990-11-13 |
| 4869622 | Feed hopper design | James A. Salter, James J. McCusker, Hendricus A. Dirkse, Rudi Everts, Gunter K. Eckstein +2 more | 1989-09-26 |
| 4838738 | Pressure compensated weigh system | James A. Salter, Thomas Schmidt, Thomas S. Dewitz, Frederick M. H. J. Duysings, Johannes W. van der Meer +2 more | 1989-06-13 |