Inventor
KELLER ROBERT
US29 patents
⚠️ This page may combine multiple inventors who share the name “KELLER ROBERT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CHAMBERLAIN GROUP INC
5 patentsUS7042183B2May 9, 2006
Barrier movement operator speed control
CHAMBERLAIN GROUP INC32 citations92
US7786619B2Aug 31, 2010
DC power backup
CHAMBERLAIN GROUP INC8 citations76
US7432676B2Oct 7, 2008
Barrier movement operator having obstruction detection
CHAMBERLAIN GROUP INC8 citations73
US7205735B2Apr 17, 2007
Barrier movement operator having obstruction detection
CHAMBERLAIN GROUP INC9 citations73
US7119509B1Oct 10, 2006
System and method for automatically requiring secondary safety sensors
CHAMBERLAIN GROUP INC9 citations73
AT HOME CORP
3 patentsUS6732179B1May 4, 2004
Method and system for restricting access to user resources
AT HOME CORP323 citations98
US6678733B1Jan 13, 2004
Method and system for authorizing and authenticating users
AT HOME CORP334 citations98
US7406530B2Jul 29, 2008
Method and system for restricting access to user resources
AT HOME CORP48 citations95