Helmut Offenbacher
15Patents
8h-index
23Co-inventors
72Inventor score
Filing activity: Dec 2, 1983 → Dec 20, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6214185A | Sensor with PVC cover membrane | Chemistry; Metallurgy | 362 | Expired |
| US4568518A | Sensor element for fluorescence-optical measurement | Physics | 45 | Expired |
| US5128019A | Device for measuring chemical and physical parameters of a liquid or gaseous medium | Physics | 17 | Expired |
| US5091800A | Cover layer for optical ion sensors | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4965087A | Method of making a sensor element for fluorescence-optical measurements | Physics | 13 | Expired |
| US4703182A | Arrangement for fluorescence-optical measurement of concentrations of substances contained in a sample | Physics | 13 | Expired |
| US8163165B2 | Gas sensor with a microporous electrolyte layer | Physics | 13 | Active |
| US5928918A | Preparation of a hydrophobic polymer matrix containing immobilized enzymes | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4776869A | Method for preparing substrates for optical sensors | Chemistry; Metallurgy | 8 | Expired |
| US8262992B2 | Modular sensor cassette | Performing Operations; Transporting | 6 | Active |
| US4716118A | Method for determining ionic strength of a sample | Physics | 5 | Expired |
| US6340714B1 | Chloride-sensitive electrode membrane | Emerging Cross-Sectional Technologies | 4 | Expired |
| US8840765B2 | Oxygen sensor with a microporous electrolyte layer and partially open cover membrane | Emerging Cross-Sectional Technologies | 3 | Active |
| US11604157B2 | Reference electrode for the potentiometric measurement of ion concentrations | Physics | 0 | Active |
| US6808619B2 | Electrode system | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.