Inventor
CALLAHAN ROBERT M
US16 patents
⚠️ This page may combine multiple inventors who share the name “CALLAHAN ROBERT M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
(unassigned)
7 patentsUSD477210SJul 15, 2003
Joist reinforcing bracket
18 citations91
USD472791SApr 8, 2003
Joist reinforcing bracket
29 citations91
USD472793SApr 8, 2003
Joist reinforcing bracket
45 citations91
USD472792SApr 8, 2003
Joist reinforcing bracket
26 citations91
US5625997AMay 6, 1997
Composite beam
22 citations91
US5519977AMay 28, 1996
Joist reinforcing bracket
47 citations91
US5832691ANov 10, 1998
Composite beam
13 citations72
IBM
4 patentsUS5012433AApr 30, 1991
Multistage clipping method
IBM62 citations95
US5027291AJun 25, 1991
Application exit for potentially pickable primitives in a graphics system
IBM25 citations92
US4982345AJan 1, 1991
Interactive computer graphics display system processing method for identifying an operator selected displayed object
IBM49 citations92
US4847605AJul 11, 1989
Picking in a graphics system
IBM45 citations87
CALLAHAN ROBERT M
4 patentsUS10519657B1Dec 31, 2019
Systems, devices, and/or methods for managing joists
CALLAHAN ROBERT M4 citations67
US10060118B2Aug 28, 2018
Systems, devices, and/or methods for managing deck installation
CALLAHAN ROBERT M4 citations67
US7347031B2Mar 25, 2008
Joist reinforcing bracket
CALLAHAN ROBERT M6 citations61
US11473299B1Oct 18, 2022
Systems, devices, and/or methods for building construction
CALLAHAN ROBERT M0 citations46