PUROLATOR INC.
20Patents
3Active
20Granted
36Portfolio score
Filing activity: Apr 19, 1974 → Sep 28, 2015
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4235233A | Bag for collecting, storing and administering including filtering blood, blood components, intravenous fluids and similar fluids | Human Necessities | 132 | Expired |
| US4473471A | Filter sealing gasket with reinforcement ring | Emerging Cross-Sectional Technologies | 59 | Expired |
| US4009714A | Intravenous solution filter unit | Human Necessities | 52 | Expired |
| US4073732A | Media for filtering blood | Performing Operations; Transporting | 48 | Expired |
| US3954623A | Blood filtration unit | Performing Operations; Transporting | 42 | Expired |
| US4126558A | Blood filtration unit with manual vent means | Emerging Cross-Sectional Technologies | 35 | Expired |
| US4038194A | Blood filter unit | Performing Operations; Transporting | 32 | Expired |
| US4162220A | Blood filter | Human Necessities | 30 | Expired |
| US4056476A | Blood filter media | Performing Operations; Transporting | 27 | Expired |
| US4127484A | Filter relief valve assembly | Performing Operations; Transporting | 21 | Expired |
| US4168237A | Differential pressure seal gasket structure for a pressure vessel | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4497706A | Oil filter relief valve | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4046696A | Extracorporeal circuit blood filter | Performing Operations; Transporting | 16 | Expired |
| US3939078A | Extracorporeal filter | Performing Operations; Transporting | 13 | Expired |
| US4172797A | Dual media filter | Performing Operations; Transporting | 12 | Expired |
| US9146146B2 | System, method, and computer readable medium for determining the weight of items in a non-singulated and non-spaced arrangement on a conveyor system | Physics | 10 | Active |
| US4169058A | Filter end cap interference fit structure | Emerging Cross-Sectional Technologies | 8 | Expired |
| US3994059A | Method and apparatus for assembling oil filter components | Emerging Cross-Sectional Technologies | 4 | Expired |
| US10094702B2 | System, method, and computer readable medium for determining the weight of items in non-singulated and non-spaced arrangements on a conveyor system | Physics | 3 | Active |
| US8918205B2 | Adjustable speed control system, method and computer readable medium for use with a conveyor and a reader | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.