Hellige GmbH
23Patents
0Active
23Granted
31Portfolio score
Filing activity: Jun 13, 1977 → Jun 29, 1990
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4203446A | Precision spring lancet | Human Necessities | 320 | Expired |
| US4813427A | Apparatus and method for preventing hypoxic damage | Human Necessities | 77 | Expired |
| US4805634A | Adapter assembly for use with a cranial biosensor | Human Necessities | 71 | Expired |
| US4993425A | Adapter assembly for use with a cranial biosensor | Human Necessities | 28 | Expired |
| US4403215A | Apparatus for automatically monitoring body functions | Human Necessities | 27 | Expired |
| US4930506A | Combined sensor for the transcutaneous measurement of oxygen and carbon dioxide in the blood | Human Necessities | 21 | Expired |
| USRE30317E | Method and apparatus for determining the perfusion efficiency factor of animal tissue | General | 17 | Expired |
| US5007424A | Polarographic/amperometric measuring sensor | Physics | 17 | Expired |
| US4840179A | Combined sensor for the transcutaneous measurement of oxygen and carbon dioxide in the blood | Human Necessities | 15 | Expired |
| US4334541A | Thermal protective circuit for a hyperemia-inducing physiological sensor | Physics | 14 | Expired |
| US4237903A | QRS detector for EKG signals | Human Necessities | 13 | Expired |
| US4425918A | Membrane retainer arrangement for physiological sensing units | Human Necessities | 13 | Expired |
| US4263561A | Amplifier arrangement with suppression of spurious signals | Electricity | 11 | Expired |
| US4674061A | Method and device for the automatic calibration of measuring and indicating appliances for the determination of partial pressure of a gas | Physics | 8 | Expired |
| US4359054A | Retainer arrangement and method for applying a membrane to a physiological sensing unit | Human Necessities | 7 | Expired |
| US4336031A | Method for the calibration of an oxygen sensing unit and calibration agent therefor | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4210153A | Medical diagnostic device for determining bleeding times and behavior of bleedings from a standardized wound | Human Necessities | 4 | Expired |
| US4207160A | Measuring sensor head for determining the contents of gases in liquids | Physics | 4 | Expired |
| US4784145A | Membrane retainer assembly for physiological sensing units | Physics | 3 | Expired |
| US4184241A | Applicator for affixing a membrane to a sensor | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4268837A | Ink jet recording instrument | Physics | 2 | Expired |
| US4156234A | Digital angle to resolver/synchro converter | Physics | 1 | Expired |
| US4591881A | Arm-deflecting system for recording apparatus | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.