Chemap AG
29Patents
0Active
29Granted
31Portfolio score
Filing activity: Dec 2, 1975 → Jun 24, 1991
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4749654A | Method and apparatus for the submerged growth of cell cultures | Emerging Cross-Sectional Technologies | 66 | Expired |
| US4219420A | Arrangement for and a process of filtering a contaminated medium | Performing Operations; Transporting | 29 | Expired |
| US4535062A | Apparatus for growing microorganisms | Performing Operations; Transporting | 28 | Expired |
| US4163724A | Pressure filter and process for cleaning it | Performing Operations; Transporting | 23 | Expired |
| US4310630A | Arrangement for cultivating cells of animal and human tissues | Chemistry; Metallurgy | 21 | Expired |
| US4213861A | Pressure filter and process for cleaning it | Performing Operations; Transporting | 19 | Expired |
| US4725548A | Method and fermenter for growing tissue cells | Chemistry; Metallurgy | 16 | Expired |
| US4276384A | Fermenter | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4428969A | Process for the extraction of date fruits | Chemistry; Metallurgy | 13 | Expired |
| US4259449A | Method of cultivating cells of animal and human tissues | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4217700A | Process for drying filtration residue | Performing Operations; Transporting | 9 | Expired |
| US4311798A | Method of and an arrangement for cultivating cells of animal and human tissues | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4404106A | Filter apparatus and a method of cleaning filter elements thereof | Performing Operations; Transporting | 9 | Expired |
| US4173516A | Device for cultivating cells of animal and human tissues | Chemistry; Metallurgy | 8 | Expired |
| US4228242A | Arrangement for cultivating cells of animal and human tissues | Chemistry; Metallurgy | 7 | Expired |
| US5143525A | Process and apparatus for breaking up foam into its liquid and gaseous components | Performing Operations; Transporting | 6 | Expired |
| US4276166A | Filter apparatus and a method of cleaning filter elements thereof | Performing Operations; Transporting | 6 | Expired |
| US4400399A | Method and an arrangement for feeding fish with a fodder | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4046789A | Process for the separation of waste products of the food industry | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4070288A | Disc filter having means for sensing the thickness of filter cakes and method of filtering with the filter | Performing Operations; Transporting | 4 | Expired |
| US4224153A | Process and a filter for filtering a liquid containing solids having a substantially different specific gravity relative to the liquid | Performing Operations; Transporting | 4 | Expired |
| US4157305A | Method of filtering molten coal | Performing Operations; Transporting | 3 | Expired |
| US4225441A | Filter element | Performing Operations; Transporting | 3 | Expired |
| US4828719A | Method and device for separating liquid and/or gas from liquid or gaseous mixture | Performing Operations; Transporting | 3 | Expired |
| US4132642A | Process for filtering a cellulose acetate solution | Textiles; Paper | 3 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.