Inventor
KESSELMAN DAVID A
US18 patents
⚠️ This page may combine multiple inventors who share the name “KESSELMAN DAVID A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KESSELMAN DAVID A
11 patentsUS5228250AJul 20, 1993
Tamper proof anchor bolt assembly
KESSELMAN DAVID A109 citations95
US4215600AAug 5, 1980
Torque limiter for use with off-the-shelf fastening elements
KESSELMAN DAVID A70 citations95
US4037515AJul 26, 1977
Tamper resistant fastener
KESSELMAN DAVID A89 citations95
US4883295ANov 28, 1989
Tamper deterrent assembly
KESSELMAN DAVID A24 citations92
US4815304AMar 28, 1989
Magnetic lock
KESSELMAN DAVID A34 citations92
US4426108AJan 17, 1984
Tamper indicator
KESSELMAN DAVID A51 citations92
US4225165ASep 30, 1980
Tamper-resistant fastener for utility meters
KESSELMAN DAVID A38 citations92
US4372593AFeb 8, 1983
Tamper indicator
KESSELMAN DAVID A24 citations81
US4699408AOct 13, 1987
Tamper deterrent assembly
KESSELMAN DAVID A12 citations73
US4552394ANov 12, 1985
Tamper indicator
KESSELMAN DAVID A11 citations73
US4426896AJan 24, 1984
Tamper-proof fastener removal tool
KESSELMAN DAVID A9 citations73
GRAHAM PACKAGING CO
4 patentsUS7140505B2Nov 28, 2006
Base design for pasteurization
GRAHAM PACKAGING CO34 citations92
US6673301B2Jan 6, 2004
Extrusion blow-molded squeezable tube-shaped container and method for making same
GRAHAM PACKAGING CO48 citations88
US7485253B2Feb 3, 2009
In-mold finished neck on a continuous extrusion blow molder
GRAHAM PACKAGING CO0 citations45
US6957953B2Oct 25, 2005
Reservoir reducing screw tip
GRAHAM PACKAGING CO0 citations40