Inventor
KARNOWSKI MARK J
US23 patents
⚠️ This page may combine multiple inventors who share the name “KARNOWSKI MARK J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CASIO PHONEMATE INC
12 patentsUS5907596AMay 25, 1999
Calling party identification device with message function
CASIO PHONEMATE INC124 citations97
US5577104ANov 19, 1996
Method for system and message activation based on distinctive ringing
CASIO PHONEMATE INC67 citations94
US5825648AOct 20, 1998
Backup system for a time of day clock in an electronic device
CASIO PHONEMATE INC24 citations92
US5781613AJul 14, 1998
Telephone answering device and method for screening incoming telephone calls with blocked calling party identification information
CASIO PHONEMATE INC40 citations92
US5761271AJun 2, 1998
Telephone answering device with improved pager access feature
CASIO PHONEMATE INC30 citations92
US5768349AJun 16, 1998
Voice mail telephone answering device
CASIO PHONEMATE INC32 citations91
US5826187AOct 20, 1998
Integrated cordless telephone with telephone answering device and method of replaying messages through a handset thereof
CASIO PHONEMATE INC29 citations90
US5768364AJun 16, 1998
Software speakerphone system and method of operating a speakerphone
CASIO PHONEMATE INC25 citations88
US6009165ADec 28, 1999
Full duplex speakerphone system
CASIO PHONEMATE INC8 citations73
US5588046ADec 24, 1996
Digital telephone answering device and method of testing message storage memory therein
CASIO PHONEMATE INC8 citations72
US5699421ADec 16, 1997
Telephone answering device with low cost dual tone multi-frequency detector
CASIO PHONEMATE INC14 citations71
US5606598AFeb 25, 1997
Telephone answering device with direct telephone line interface
CASIO PHONEMATE INC6 citations62
PHONEMATE INC
3 patentsUS5400393AMar 21, 1995
Voice mail digital telephone answering device
PHONEMATE INC165 citations97
US5432844AJul 11, 1995
Shared line answering system with enhanced extension device features
PHONEMATE INC55 citations95
US5392332AFeb 21, 1995
Shared line telephone answering system with a telephone line-powered disconnect module
PHONEMATE INC6 citations61
CASIO COMMUNICATIONS INC
2 patentsUS6304644B2Oct 16, 2001
Apparatus and method for cost effective caller identification and call-waiting for a multi-line telephone
CASIO COMMUNICATIONS INC68 citations95
US6160872ADec 12, 2000
Apparatus and method for preventing disconnection of consumer premises equipment
CASIO COMMUNICATIONS INC26 citations87