Inventor
WALKER ROBERT J
US22 patents
⚠️ This page may combine multiple inventors who share the name “WALKER ROBERT J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WALKER ROBERT J
5 patentsUS8739988B2Jun 3, 2014
Pinned connection system for crane column segments
WALKER ROBERT J14 citations83
US8839966B2Sep 23, 2014
Folding jib main strut and transportable reeved strut caps
WALKER ROBERT J9 citations82
US4292714AOct 6, 1981
Easy opening and secure closing closure
WALKER ROBERT J16 citations72
US8127949B2Mar 6, 2012
Crane backstay spreader
WALKER ROBERT J5 citations57
USD246100SOct 18, 1977
Auxiliary sun visor
WALKER ROBERT J0 citations51
MANITOWOC CRANE COMPANIES LLC
4 patentsUS7954657B2Jun 7, 2011
Connection system for crane boom segments
MANITOWOC CRANE COMPANIES LLC21 citations92
US9051159B2Jun 9, 2015
Column connector system
MANITOWOC CRANE COMPANIES LLC11 citations84
US9187296B2Nov 17, 2015
Connection system for crane column segments
MANITOWOC CRANE COMPANIES LLC1 citations52
US9415980B2Aug 16, 2016
Lift crane with mast-raising mechanism
MANITOWOC CRANE COMPANIES LLC0 citations31
CORNING INC
3 patentsUSRE38310ENov 11, 2003
Optical circuit on printed circuit board
CORNING INC23 citations92
US5659641AAug 19, 1997
Optical circuit on printed circuit board
CORNING INC41 citations92
US6173094B1Jan 9, 2001
Optical-transmission system having a split-gain amplifier and a signal-modifying device
CORNING INC80 citations89
MANITOWOC CRANE GROUP INC
3 patentsUS6213318B1Apr 10, 2001
Rotatable connection system for crane boom sections
MANITOWOC CRANE GROUP INC30 citations92
US5960970AOct 5, 1999
Multiple position wire rope guide
MANITOWOC CRANE GROUP INC27 citations92
US5842587ADec 1, 1998
Offsetting link assembly for folding luffing jib
MANITOWOC CRANE GROUP INC24 citations89