Weil-McLain
16Patents
0Active
16Granted
35Portfolio score
Filing activity: Jul 10, 1974 → Oct 25, 1995
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3962675A | Underwater floodlight assembly | Mechanical Engineering; Lighting; Heating | 41 | Expired |
| US3938352A | Water to air heat pump employing an energy and condensate conservation system | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| US3966363A | Pumping assembly | Mechanical Engineering; Lighting; Heating | 29 | Expired |
| US3981335A | Liquid dispensing and vapor recovery system utilizing an injector and a valve for permitting operation of leak detecting apparatus | Performing Operations; Transporting | 29 | Expired |
| US3952218A | Grounded electrical connector for submersible apparatus | Electricity | 28 | Expired |
| US3952781A | Liquid dispensing and vapor recovery system and a vapor flow control unit used therein | Performing Operations; Transporting | 26 | Expired |
| US3981334A | Liquid dispensing and vapor recovery system utilizing an injector and an improved vapor flow control unit | Performing Operations; Transporting | 23 | Expired |
| US4043917A | Liquid filter apparatus | Performing Operations; Transporting | 21 | Expired |
| US4019836A | Plastic motor-pump base for a submersible pump unit | Emerging Cross-Sectional Technologies | 14 | Expired |
| US3941168A | Liquid dispensing and vapor recovery system utilizing an injector and a vapor flow control valve | Performing Operations; Transporting | 14 | Expired |
| US3956903A | System for recovering and condensing vapors | Performing Operations; Transporting | 9 | Expired |
| US3958894A | Fluid pumping assembly of a molded synthetic material | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US3976131A | Pitless adapter with pressurized seal | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US3990261A | Air conditioning unit | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US5961316A | Oil burner | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US4056133A | Fluid flow control apparatus and a gasoline dispensing and vapor recovery system utilizing said apparatus | Emerging Cross-Sectional Technologies | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.