The Risdon Manufacturing Company
23Patents
0Active
23Granted
33Portfolio score
Filing activity: Mar 19, 1975 → Jan 21, 1980
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3990848A | System for inducing air flow past a gel type product | Emerging Cross-Sectional Technologies | 94 | Expired |
| US4035451A | Cartridge forming part of a system for inducing air flow past a product capable of being vaporized | Emerging Cross-Sectional Technologies | 86 | Expired |
| US4094119A | Method of making a product for dispensing a volatile substance | Human Necessities | 85 | Expired |
| US4063664A | Device for indicating when automatic, periodic operation has emptied an aerosol container | Performing Operations; Transporting | 52 | Expired |
| US4024988A | Safety closure assembly for an aerosol container | Performing Operations; Transporting | 51 | Expired |
| US4173297A | Non-throttling manually reciprocated plunger pump for consumer-type liquid dispensing containers | Performing Operations; Transporting | 36 | Expired |
| US4006844A | Apparatus for operating an aerosol container | Physics | 30 | Expired |
| US4073398A | Snap-lock device for securing a dispensing mechanism to a container | Performing Operations; Transporting | 26 | Expired |
| US3949906A | Liquid dispensing pump selectively sealable against leakage | Performing Operations; Transporting | 24 | Expired |
| US4162749A | Squeezable dispenser with outlet closure | Performing Operations; Transporting | 24 | Expired |
| US4056216A | Liquid dispensing pump automatically sealable against leakage | Performing Operations; Transporting | 23 | Expired |
| USD244808S | Plastic spool for thread or the like | General | 21 | Expired |
| US3991914A | Easily assembled, leakproof liquid dispensing pump | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4022354A | Accumulator release pump | Performing Operations; Transporting | 19 | Expired |
| USD261940S | Lipstick case or similar article | General | 16 | Expired |
| US4110427A | Powdered solid aerosol composition and method of manufacture | Human Necessities | 15 | Expired |
| USD253549S | Deodorizer housing | General | 14 | Expired |
| US4158361A | Dispensing system for directing liquid to a defined area | Human Necessities | 11 | Expired |
| US3967762A | Pump for dispensing liquid from a container in a generally continuous manner | Physics | 8 | Expired |
| US4120431A | Tip seal dispenser valve for a pressurized container | Performing Operations; Transporting | 8 | Expired |
| USD255641S | Hand-tool for applying grommets and the like | General | 6 | Expired |
| USD244995S | Aerosol spray actuator button | General | 6 | Expired |
| US4162748A | Dispenser using belleville diaphragm | Performing Operations; Transporting | 3 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.