Peter Hirschmann
12Patents
5h-index
11Co-inventors
63Inventor score
Filing activity: Aug 19, 1976 → Apr 1, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4112427A | Reversible analog-to-digital converter | Electricity | 35 | Expired |
| US4754088A | Process for oxychlorination of ethylene | Chemistry; Metallurgy | 13 | Expired |
| US5236968A | Lacquer hardenable by UV radiation | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4162376A | Conference call circuit using reversible analog to digital converter | Electricity | 5 | Expired |
| US6507203B1 | Test head assembly | Physics | 5 | Expired |
| US4839153A | Process for purification of HCl from pyrolysis of EDC | Chemistry; Metallurgy | 4 | Expired |
| US4986975A | Process for purifying hydrogen chloride from pyrolysis of 1,2-dichloroethane | Chemistry; Metallurgy | 4 | Expired |
| US4160878A | Conference circuit with digital-analog and analog-digital conversion | Electricity | 4 | Expired |
| US4335455A | Method and apparatus for four-wire type transmission of digital message signals | Electricity | 2 | Expired |
| US7164278B2 | Device for releasable connecting an interface with a test equipment | Physics | 2 | Expired |
| US6756778B2 | Measuring and/or calibrating a test head | Physics | 1 | Expired |
| US4606742A | Novel heat recovery process | Performing Operations; Transporting | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.