Beringer
9Patents
0Active
9Granted
28Portfolio score
Filing activity: Sep 18, 1978 → Jun 6, 2000
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4220480A | Process for vacuum pyrolysis removal of polymers from various objects | Performing Operations; Transporting | 20 | Expired |
| US4814186A | Polymer filtration apparatus | Performing Operations; Transporting | 16 | Expired |
| US4511472A | Apparatus for continuous polymer filtration | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4237014A | Flowable material passage with interposable slide member | Performing Operations; Transporting | 12 | Expired |
| US6010625A | Screen changer with controlled gap | Performing Operations; Transporting | 9 | Expired |
| US4359387A | Flowable material passage with interposable slide member | Performing Operations; Transporting | 8 | Expired |
| US6238558A | Filter changer with bimodal sealing means | Performing Operations; Transporting | 4 | Expired |
| US4424080A | Process for hydrolysis removal of condensation polymer from various objects | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6575722B1 | Apparatus for producing and cooling polymer pellets | Performing Operations; Transporting | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.