CFR Corporation
9Patents
0Active
9Granted
30Portfolio score
Filing activity: Jul 23, 1990 → Nov 25, 1997
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5839155A | Continuous flow cleaning system with ozone injection | Chemistry; Metallurgy | 32 | Expired |
| US5555598A | Cleaning tool head with overlapping and offset fluid spray patterns | Human Necessities | 29 | Expired |
| US5589080A | Liquid recycling system with moving concentrated counterflow for filter clearance | Performing Operations; Transporting | 27 | Expired |
| US5432975A | Self-contained continuous flow recycling apparatus | Human Necessities | 15 | Expired |
| US6055699A | Cleaning tool head with multi-filament seal | Human Necessities | 15 | Expired |
| US5114574A | Backflush filter system with insert member diffusing filtering and backflush flow | Performing Operations; Transporting | 13 | Expired |
| US5151181A | Filter system for wet vacuum cleaning apparatus | Performing Operations; Transporting | 8 | Expired |
| US6076229A | Aqueous cleaning solutions incorporating ozone-resistant surfactants with low foam characteristics | Chemistry; Metallurgy | 7 | Expired |
| US5077823A | Electric motor starting circuit | Emerging Cross-Sectional Technologies | 6 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.