Inventor
MANSSEN KEITH R
US19 patents
⚠️ This page may combine multiple inventors who share the name “MANSSEN KEITH R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MANSSEN KEITH R
6 patentsUS8803631B2Aug 12, 2014
Method and apparatus for adapting a variable impedance network
MANSSEN KEITH R73 citations98
US8620236B2Dec 31, 2013
Techniques for improved adaptive impedance matching
MANSSEN KEITH R116 citations98
US9026062B2May 5, 2015
Method and apparatus for managing operations of a communication device
MANSSEN KEITH R47 citations97
US8432234B2Apr 30, 2013
Method and apparatus for tuning antennas in a communication device
MANSSEN KEITH R74 citations96
US8472888B2Jun 25, 2013
Method and apparatus for calibrating a communication device
MANSSEN KEITH R65 citations94
US9379454B2Jun 28, 2016
Method and apparatus for tuning antennas in a communication device
MANSSEN KEITH R16 citations91
MOTOROLA INC
6 patentsUS5878209AMar 2, 1999
Apparatus and method for identifying a failed subscriber unit in a wireless communication system
MOTOROLA INC82 citations96
US5809421ASep 15, 1998
Method for locating variable control channels by a mobile station in a radiotelephone system
MOTOROLA INC40 citations92
US5542103AJul 30, 1996
Radiotelephone with easily accessible feature activation
MOTOROLA INC27 citations92
US5010309AApr 23, 1991
Ceramic block filter with co-fired coupling pins
MOTOROLA INC28 citations92
US5731746AMar 24, 1998
Multi-frequency ceramic block filter with resonators in different planes
MOTOROLA INC26 citations91
US5140635AAug 18, 1992
Wireless telephone with frequency inversion scrambling
MOTOROLA INC6 citations60
BLACKBERRY LTD
3 patentsUS9698748B2Jul 4, 2017
Adaptive impedance matching
BLACKBERRY LTD8 citations83
US9853663B2Dec 26, 2017
Method and apparatus for managing operations of a communication device
BLACKBERRY LTD2 citations73
US9941910B2Apr 10, 2018
Method and apparatus for antenna tuning and power consumption management in a communication device
BLACKBERRY LTD3 citations70