PHYSIO-CONTROL, INC.
425Patents
308Active
425Granted
57Portfolio score
Filing activity: Aug 18, 1975 → Apr 25, 2024 · 50 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5868790A | Keyed self-latching battery pack for a portable defibrillator | Emerging Cross-Sectional Technologies | 1,118 | Expired |
| US5285792A | System for producing prioritized alarm messages in a medical instrument | Physics | 766 | Expired |
| US4619265A | Interactive portable defibrillator including ECG detection circuit | Physics | 388 | Expired |
| US4913150A | Method and apparatus for the automatic calibration of signals employed in oximetry | Human Necessities | 370 | Expired |
| US4800495A | Method and apparatus for processing signals used in oximetry | Human Necessities | 311 | Expired |
| US5259381A | Apparatus for the automatic calibration of signals employed in oximetry | Human Necessities | 299 | Expired |
| US4869253A | Method and apparatus for indicating perfusion and oxygen saturation trends in oximetry | Human Necessities | 291 | Expired |
| US5341806A | Multiple electrode strip | Human Necessities | 251 | Expired |
| US4610254A | Interactive portable defibrillator | Physics | 250 | Expired |
| US5246002A | Noise insensitive pulse transmittance oximeter | Human Necessities | 242 | Expired |
| US4892101A | Method and apparatus for offsetting baseline portion of oximeter signal | Human Necessities | 207 | Expired |
| US4424806A | Automated ventilation, CPR, and circulatory assistance apparatus | Human Necessities | 199 | Expired |
| US5487751A | Mechanical connector for securing compatible medical instruments together | Electricity | 178 | Expired |
| US5605150A | Electrical interface for a portable electronic physiological instrument having separable components | Human Necessities | 173 | Expired |
| US8135462B2 | Pulse detection using patient physiological signals | Human Necessities | 165 | Active |
| US4635639A | Modular physiological instrument | Human Necessities | 163 | Expired |
| US4819646A | Feedback-controlled method and apparatus for processing signals used in oximetry | Human Necessities | 161 | Expired |
| US4349015A | Manually-actuable CPR apparatus | Human Necessities | 158 | Expired |
| US4915656A | Discriminating medical electrode connector | Emerging Cross-Sectional Technologies | 155 | Expired |
| US4859056A | Multiple-pulse method and apparatus for use in oximetry | Human Necessities | 149 | Expired |
| US5741305A | Keyed self-latching battery pack for a portable defibrillator | Emerging Cross-Sectional Technologies | 147 | Expired |
| US5309909A | Combined skin preparation and monitoring electrode | Human Necessities | 119 | Expired |
| US5640078A | Method and apparatus for automatically switching and charging multiple batteries | Electricity | 111 | Expired |
| US5161539A | Method and apparatus for performing mapping-type analysis including use of limited electrode sets | Human Necessities | 100 | Expired |
| US5549659A | Communication interface for transmitting and receiving serial data between medical instruments | Human Necessities | 97 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.