Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7612159 | Process for working up polyethersiloxanes | Horst Dudzik, Wolfgang Hiersche, Wilfried Knott, Volker Mohring | 2009-11-03 |
| 6357549 | Guide rail climbing lifting platform and method | Donald D. Brennan, Brent R. Leisening, Carl W. Diedrich, Ralph Douglas Fredrickson | 2002-03-19 |
| 4479591 | Apparatus and method for removing foreign materials from a cement metering wheel | Joseph M. White, Diane M. Witkonis | 1984-10-30 |
| 4441821 | Apparatus for increasing the delivery range of a mixing and delivery auger trough | Martin F. Dohnalik | 1984-04-10 |