Robert K. Krolopp
17Patents
14h-index
15Co-inventors
71Inventor score
Filing activity: Jul 31, 1987 → Nov 18, 1997
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5260988A | Apparatus and method for alternative radiotelephone system selection | Electricity | 297 | Expired |
| US5020091A | Automatic new radiotelephone system registration notification | Emerging Cross-Sectional Technologies | 208 | Expired |
| US4905301A | Selective system scan for multizone radiotelephone subscriber units | Electricity | 115 | Expired |
| US5148471A | Communications device with voice recognition and movable element control interface | Electricity | 97 | Expired |
| US5175759A | Communications device with movable element control interface | Emerging Cross-Sectional Technologies | 87 | Expired |
| US5036532A | Portable telephone with power source/mode change during calls | Emerging Cross-Sectional Technologies | 68 | Expired |
| US5384825A | Method for memory dialing for cellular telephones | Electricity | 62 | Expired |
| US5842122A | Apparatus and method for alternative radiotelephone system selection | Electricity | 49 | Expired |
| US5901357A | Frequency allocation for subscribers of multiple telephone systems having frequency sharing | Electricity | 47 | Expired |
| US4811377A | Secure transfer of radio specific data | Electricity | 42 | Expired |
| US5848072A | Method of and apparatus for communicating messages | Electricity | 35 | Expired |
| US5699408A | International mobile station identification method and signaling system for cellular radiotelephones and systems | Electricity | 27 | Expired |
| US5809421A | Method for locating variable control channels by a mobile station in a radiotelephone system | Electricity | 23 | Expired |
| US5241548A | Method for error correction of a transmitted data word | Physics | 20 | Expired |
| US5524278A | Method and apparatus for determining a serving communication system where communication systems operate conjunctively | Electricity | 13 | Expired |
| US5463646A | Method for error correction of a transmitted data word | Physics | 13 | Expired |
| US6122525A | International mobile station identification method and signaling system for cellular radiotelephones and systems | Electricity | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.