Pall Corporation
781Patents
249Active
781Granted
53Portfolio score
Filing activity: Aug 2, 1904 → Jan 2, 2024 · 65 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5582907A | Melt-blown fibrous web | Emerging Cross-Sectional Technologies | 997 | Expired |
| US4340479A | Process for preparing hydrophilic polyamide membrane filter media and product | Performing Operations; Transporting | 275 | Expired |
| US5601727A | Device and method for separating plasma from a biological fluid | Human Necessities | 264 | Expired |
| US5100564A | Blood collection and processing system | Performing Operations; Transporting | 252 | Expired |
| US4402830A | Corrugated filter element with external spiral tape support | Performing Operations; Transporting | 218 | Expired |
| US4925572A | Device and method for depletion of the leukocyte content of blood and blood components | Human Necessities | 203 | Expired |
| US7144496B2 | Biological fluid analysis device | Chemistry; Metallurgy | 181 | Expired |
| US4609465A | Filter cartridge with a connector seal | Performing Operations; Transporting | 179 | Expired |
| US4880548A | Device and method for separating leucocytes from platelet concentrate | Human Necessities | 165 | Expired |
| US5152905A | Method for processing blood for human transfusion | Human Necessities | 158 | Expired |
| US5690815A | Automated system for processing biological fluid | Performing Operations; Transporting | 157 | Expired |
| US5217627A | System and method for processing biological fluid | Performing Operations; Transporting | 151 | Expired |
| US4158449A | Inlet air cleaner assembly for turbine engines | Emerging Cross-Sectional Technologies | 150 | Expired |
| US4537608A | System for removing contaminant particles from a gas | Performing Operations; Transporting | 142 | Expired |
| US5417101A | Method and apparatus for testing the integrity of filter elements | Performing Operations; Transporting | 139 | Expired |
| US4231768A | Air purification system and process | Emerging Cross-Sectional Technologies | 134 | Expired |
| US4664683A | Self-supporting structures containing immobilized carbon particles and method for forming same | Performing Operations; Transporting | 131 | Expired |
| US4431545A | Microporous filter system and process | Chemistry; Metallurgy | 129 | Expired |
| US5229012A | Method for depletion of the leucocyte content of blood and blood components | Human Necessities | 124 | Expired |
| US4662906A | Cardiotomy reservoir | Emerging Cross-Sectional Technologies | 123 | Expired |
| US4693985A | Methods of concentrating ligands and active membranes used therefor | Emerging Cross-Sectional Technologies | 121 | Expired |
| US4759782A | Coalescing filter for removal of liquid aerosols from gaseous streams | Emerging Cross-Sectional Technologies | 121 | Expired |
| US6039872A | Hydrophilic membrane | Performing Operations; Transporting | 121 | Expired |
| US5258127A | Leucocyte depleting filter device and method of use | Performing Operations; Transporting | 117 | Expired |
| US4154688A | Collapse-resistant corrugated filter element | Performing Operations; Transporting | 115 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.