Millipore Corporation
475Patents
86Active
475Granted
47Portfolio score
Filing activity: Apr 22, 1971 → Oct 3, 2014 · 84 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4618533A | Porous membrane having hydrophilic surface and process | Emerging Cross-Sectional Technologies | 212 | Expired |
| US4632745A | Electrodeionization apparatus | Chemistry; Metallurgy | 204 | Expired |
| US5223226A | Insulated needle for forming an electrospray | Physics | 198 | Expired |
| US4246339A | Test device | Emerging Cross-Sectional Technologies | 195 | Expired |
| US5032265A | Method and system for producing sterile aqueous solutions | Chemistry; Metallurgy | 186 | Expired |
| US5527675A | Method for degradation and sequencing of polymers which sequentially eliminate terminal residues | Emerging Cross-Sectional Technologies | 180 | Expired |
| US4407943A | Immobilized antibody or antigen for immunoassay | Emerging Cross-Sectional Technologies | 162 | Expired |
| US5798273A | Direct read lateral flow assay for small analytes | Physics | 162 | Expired |
| US4321397A | 4-Aminoantipyrine dye for the analytic determination of hydrogen peroxide | Chemistry; Metallurgy | 151 | Expired |
| US4203848A | Processes of making a porous membrane material from polyvinylidene fluoride, and products | Performing Operations; Transporting | 142 | Expired |
| US4902481A | Multi-well filtration test apparatus | Performing Operations; Transporting | 137 | Expired |
| US5211823A | Process for purifying resins utilizing bipolar interface | Chemistry; Metallurgy | 127 | Expired |
| US4200690A | Immunoassay with membrane immobilized antibody | Emerging Cross-Sectional Technologies | 124 | Expired |
| US4923901A | Membranes with bound oligonucleotides and peptides | Emerging Cross-Sectional Technologies | 120 | Expired |
| US6048457A | Cast membrane structures for sample preparation | Physics | 118 | Expired |
| US4430226A | Method and apparatus for producing ultrapure water | Emerging Cross-Sectional Technologies | 116 | Expired |
| US5079272A | Porous membrane formed from interpenetrating polymer network having hydrophilic surface | Emerging Cross-Sectional Technologies | 105 | Expired |
| US5158721A | Porous membrane formed from interpenetrating polymer network having hydrophilic surface | Emerging Cross-Sectional Technologies | 104 | Expired |
| US5262068A | Integrated system for filtering and dispensing fluid having fill, dispense and bubble purge strokes | Performing Operations; Transporting | 104 | Expired |
| US5154809A | Process for purifying water | Chemistry; Metallurgy | 99 | Expired |
| US4545497A | Container cap with frangible septum | Performing Operations; Transporting | 99 | Expired |
| US5116509A | Electrodeionization and ultraviolet light treatment method for purifying water | Chemistry; Metallurgy | 96 | Expired |
| US4925541A | Electodeionization apparatus and method | Chemistry; Metallurgy | 95 | Expired |
| US6068770A | Disposable separation module with quick connect capability | Performing Operations; Transporting | 88 | Expired |
| US4931160A | Electrodeionization method and apparatus | Chemistry; Metallurgy | 84 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.