Celgard, LLC
168Patents
127Active
168Granted
54Portfolio score
Filing activity: Sep 25, 1996 → Dec 4, 2023 · 20 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6432586B1 | Separator for a high energy rechargeable lithium battery | Emerging Cross-Sectional Technologies | 165 | Expired |
| US6322923A | Separator for gel electrolyte battery | Emerging Cross-Sectional Technologies | 85 | Expired |
| US6149817A | Shell-less hollow fiber membrane fluid contactor | Performing Operations; Transporting | 85 | Expired |
| US6503225B1 | Device for removal of gas bubbles and dissolved gasses in liquid | Performing Operations; Transporting | 85 | Expired |
| US6080507A | Trilayer battery separator | Emerging Cross-Sectional Technologies | 79 | Expired |
| US6402818B1 | Degassing a liquid with a membrane contactor | Performing Operations; Transporting | 70 | Expired |
| US6602593B1 | Battery separators with reduced splitting propensity | Emerging Cross-Sectional Technologies | 63 | Expired |
| US5952120A | Method of making a trilayer battery separator | Emerging Cross-Sectional Technologies | 58 | Expired |
| US5938922A | Contactor for degassing liquids | Performing Operations; Transporting | 51 | Expired |
| US6267926A | Device for removing entrained gases from liquids | Human Necessities | 40 | Expired |
| US6287730A | Hydrophilic polyolefin having a coating containing a surfactant and an EVOH copolymer | Emerging Cross-Sectional Technologies | 36 | Expired |
| US6368742B2 | Polypropylene microporous membrane for battery separator | Emerging Cross-Sectional Technologies | 36 | Expired |
| US6057061A | Ethylene-vinyl alcohol copolymer battery separator | Emerging Cross-Sectional Technologies | 31 | Expired |
| US6616841B2 | Hollow fiber membrane contactor | Performing Operations; Transporting | 28 | Expired |
| US5916647A | Pressure vessel: overmolding a polyolefin onto a polyolefin | Emerging Cross-Sectional Technologies | 28 | Expired |
| US8795565B2 | Biaxially oriented microporous membrane | Emerging Cross-Sectional Technologies | 28 | Active |
| US6007940A | Portable power tool having low rate, rechargeable batteries | Emerging Cross-Sectional Technologies | 27 | Expired |
| US8506685B2 | High pressure liquid degassing membrane contactors and methods of manufacturing and use | Chemistry; Metallurgy | 27 | Active |
| US6057060A | Ultra-thin, single-ply battery separator | Emerging Cross-Sectional Technologies | 27 | Expired |
| US6106971A | Portable power tool having low rate, rechargeable batteries attached to clothing | Emerging Cross-Sectional Technologies | 27 | Expired |
| US6749961B1 | Shutdown battery separator made with a blend of polymer and oligomer | Emerging Cross-Sectional Technologies | 27 | Expired |
| US7662510B2 | X-ray sensitive battery separator and a method for detecting the position of a separator in a battery | Emerging Cross-Sectional Technologies | 21 | Active |
| US6180280A | Trilayer battery separator | Emerging Cross-Sectional Technologies | 21 | Expired |
| US7794511B2 | Battery separator for lithium polymer battery | Emerging Cross-Sectional Technologies | 21 | Active |
| US8778055B2 | High pressure liquid degassing membrane contactors and methods of manufacturing and use | Chemistry; Metallurgy | 16 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.