PerSeptive Biosystems Inc.
🏢 View company profile →69Patents
0Active
69Granted
38Portfolio score
Filing activity: Oct 23, 1989 → Oct 10, 2003
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5885775A | Methods for determining sequences information in polynucleotides using mass spectrometry | Emerging Cross-Sectional Technologies | 274 | Expired |
| US5372719A | Molecular imaging | Physics | 239 | Expired |
| US5453199A | Molecular imaging | Physics | 235 | Expired |
| US5625184A | Time-of-flight mass spectrometry analysis of biomolecules | Electricity | 185 | Expired |
| US6581441B1 | Capillary column chromatography process and system | Physics | 122 | Expired |
| US6545268B1 | Preparation of ion pulse for time-of-flight and for tandem time-of-flight mass analysis | Electricity | 111 | Expired |
| US6319476A | Microfluidic connector | Emerging Cross-Sectional Technologies | 106 | Expired |
| US6057543A | Time-of-flight mass spectrometry analysis of biomolecules | Electricity | 105 | Expired |
| US5627369A | Time-of-flight mass spectrometry analysis of biomolecules | Electricity | 98 | Expired |
| US6534764B1 | Tandem time-of-flight mass spectrometer with damping in collision cell and method for use | Electricity | 94 | Expired |
| US5757482A | Module for optical detection in microscale fluidic analyses | Physics | 94 | Expired |
| US6348688B1 | Tandem time-of-flight mass spectrometer with delayed extraction and method for use | Electricity | 93 | Expired |
| US6281493A | Time-of-flight mass spectrometry analysis of biomolecules | Electricity | 88 | Expired |
| US6375817B1 | Apparatus and methods for sample analysis | Emerging Cross-Sectional Technologies | 84 | Expired |
| US6002127A | Time-of-flight mass spectrometry analysis of biomolecules | Electricity | 80 | Expired |
| US5958202A | Capillary electrophoresis enzyme immunoassay | Physics | 77 | Expired |
| US5019270A | Perfusive chromatography | Physics | 72 | Expired |
| US5917184A | Interface between liquid flow and mass spectrometer | Electricity | 71 | Expired |
| US5760393A | Time-of-flight mass spectrometry analysis of biomolecules | Electricity | 67 | Expired |
| US5389449A | Sulfonamide bonded hydrophilic coatings | Emerging Cross-Sectional Technologies | 58 | Expired |
| US5376249A | Analysis utilizing isoelectric focusing | Physics | 57 | Expired |
| US5630924A | Compositions, methods and apparatus for ultrafast electroseparation analysis | Physics | 56 | Expired |
| US6504150B1 | Method and apparatus for determining molecular weight of labile molecules | Electricity | 55 | Expired |
| US6344172B1 | Protein chromatography system | Physics | 53 | Expired |
| US6662818B2 | Programmable tracking pressure regulator for control of higher pressures in microfluidic circuits | Emerging Cross-Sectional Technologies | 52 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.