Inventor
KROLOPP ROBERT K
US17 patents
⚠️ This page may combine multiple inventors who share the name “KROLOPP ROBERT K”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MOTOROLA INC
16 patentsUS5260988ANov 9, 1993
Apparatus and method for alternative radiotelephone system selection
MOTOROLA INC386 citations99
US5148471ASep 15, 1992
Communications device with voice recognition and movable element control interface
MOTOROLA INC135 citations98
US5020091AMay 28, 1991
Automatic new radiotelephone system registration notification
MOTOROLA INC254 citations97
US4905301AFeb 27, 1990
Selective system scan for multizone radiotelephone subscriber units
MOTOROLA INC158 citations97
US5901357AMay 4, 1999
Frequency allocation for subscribers of multiple telephone systems having frequency sharing
MOTOROLA INC72 citations96
US5842122ANov 24, 1998
Apparatus and method for alternative radiotelephone system selection
MOTOROLA INC83 citations96
US5036532AJul 30, 1991
Portable telephone with power source/mode change during calls
MOTOROLA INC94 citations96
US4811377AMar 7, 1989
Secure transfer of radio specific data
MOTOROLA INC71 citations94
US5809421ASep 15, 1998
Method for locating variable control channels by a mobile station in a radiotelephone system
MOTOROLA INC40 citations92
US5524278AJun 4, 1996
Method and apparatus for determining a serving communication system where communication systems operate conjunctively
MOTOROLA INC21 citations92
US5463646AOct 31, 1995
Method for error correction of a transmitted data word
MOTOROLA INC24 citations91
US5384825AJan 24, 1995
Method for memory dialing for cellular telephones
MOTOROLA INC95 citations91
US5241548AAug 31, 1993
Method for error correction of a transmitted data word
MOTOROLA INC30 citations91
US5848072ADec 8, 1998
Method of and apparatus for communicating messages
MOTOROLA INC47 citations90
US5699408ADec 16, 1997
International mobile station identification method and signaling system for cellular radiotelephones and systems
MOTOROLA INC41 citations89
US6122525ASep 19, 2000
International mobile station identification method and signaling system for cellular radiotelephones and systems
MOTOROLA INC11 citations70