Berwind Corporation
19Patents
0Active
19Granted
32Portfolio score
Filing activity: May 7, 1979 → Jun 11, 1990
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4676100A | Capacitance-type material level indicator | Physics | 62 | Expired |
| US4555941A | Capacitance-type material level indicator | Physics | 47 | Expired |
| US4499766A | Capacitance-type material level indicator | Physics | 41 | Expired |
| US4800755A | Capacitance-type material level indicator | Physics | 38 | Expired |
| US4499640A | Method of manufacturing capacitance-type material level indicator probe | Emerging Cross-Sectional Technologies | 27 | Expired |
| US5245873A | Capacitance-type material level indicator and method of operation | Physics | 25 | Expired |
| US4255859A | Drop-weight material level indicator | Physics | 22 | Expired |
| US4499767A | Capacitance-type material level indicator | Physics | 20 | Expired |
| US4810099A | Mixer | Performing Operations; Transporting | 17 | Expired |
| US4624139A | Capacitance-type material level indicator | Physics | 15 | Expired |
| US4499641A | Method of manufacturing capacitance-type material level indicator probe | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4811160A | Capacitance-type material level probe | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4910878A | Suspended-cable apparatus for measuring level of material in a storage vessel | Physics | 11 | Expired |
| US4392032A | Rotating paddle bin level indicator | Electricity | 11 | Expired |
| US4856580A | Heat exchanger | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4695685A | Rotating paddle bin level indicator | Electricity | 8 | Expired |
| US4676099A | Suspended-cable apparatus for measuring a preselected condition of material in a vessel | Physics | 8 | Expired |
| US4549245A | Capacitance-type material level probe and method of manufacture | Physics | 7 | Expired |
| US4589831A | Removable mold segments for rotary molds | Performing Operations; Transporting | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.