Chemap AG
Records under this name other than patents Chemap AG holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 4,046,789 | Process for the separation of waste products of the food industry Term ended Term ended no later than Sep 6, 1997 · Low confidence | Term ended | Term ended no later than Sep 6, 1997 | Low confidence |
| US 4,070,288 | Disc filter having means for sensing the thickness of filter cakes and method of filtering with the filter Term ended Term ended no later than Jan 24, 1998 · Low confidence | Term ended | Term ended no later than Jan 24, 1998 | Low confidence |
| US 4,123,861 | Method of excavating earth with a bucket Formerly held Term ended Term ended no later than Nov 7, 1998 · Low confidence | Term ended | Term ended no later than Nov 7, 1998 | Low confidence |
| US 4,132,642 | Process for filtering a cellulose acetate solution Term ended Term ended no later than Jan 2, 1999 · Low confidence | Term ended | Term ended no later than Jan 2, 1999 | Low confidence |
| US 4,152,261 | Process and a filter for filtering a liquid containing solids having a substantially different specific gravity relative to the liquid Term ended Term ended no later than May 1, 1999 · Low confidence | Term ended | Term ended no later than May 1, 1999 | Low confidence |
| US 4,157,305 | Method of filtering molten coal Term ended Term ended no later than Jun 5, 1999 · Low confidence | Term ended | Term ended no later than Jun 5, 1999 | Low confidence |
| US 4,163,724 | Pressure filter and process for cleaning it Term ended Term ended no later than Aug 7, 1999 · Low confidence | Term ended | Term ended no later than Aug 7, 1999 | Low confidence |
| US 4,173,516 | Device for cultivating cells of animal and human tissues Term ended Term ended no later than Nov 6, 1999 · Low confidence | Term ended | Term ended no later than Nov 6, 1999 | Low confidence |
| US 4,190,544 | Filter element for a rotatable disc filter Term ended Term ended no later than Feb 26, 2000 · Low confidence | Term ended | Term ended no later than Feb 26, 2000 | Low confidence |
| US 4,213,861 | Pressure filter and process for cleaning it Term ended Term ended no later than Jul 22, 2000 · Low confidence | Term ended | Term ended no later than Jul 22, 2000 | Low confidence |