Inventor
CHAPIN DAVID S
40 patents
⚠️ This page may combine multiple inventors who share the name “CHAPIN DAVID S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
COOPER IND INC
27 patentsUS5038985AAug 13, 1991
Adjustable tape measure clip
COOPER IND INC133 citations98
US4751452AJun 14, 1988
Battery operated power wrap tool
COOPER IND INC171 citations98
US4597453AJul 1, 1986
Drive unit with self-aligning gearing system
COOPER IND INC57 citations96
US5311949AMay 17, 1994
Power screwdriver handle configuration
COOPER IND INC48 citations93
US4938430AJul 3, 1990
Tape measure lock
COOPER IND INC28 citations93
US4897898AFeb 6, 1990
Adjustable tape measure clip
COOPER IND INC23 citations93
US4635363AJan 13, 1987
Hand operated cutting tool
COOPER IND INC37 citations93
USD315109SMar 5, 1991
Housing for a measuring tape
COOPER IND INC22 citations91
USD311874SNov 6, 1990
Housing for a measuring tape
COOPER IND INC37 citations91
US4927092AMay 22, 1990
Tape measure locking system
COOPER IND INC26 citations91
USD302932SAug 22, 1989
Hammer
COOPER IND INC31 citations89
USD319347SAug 27, 1991
Combined key chain and measuring tape
COOPER IND INC27 citations88
US4881894ANov 21, 1989
Self-igniting portable torch assembly
COOPER IND INC30 citations87
USD343344SJan 18, 1994
Tool handle
COOPER IND INC17 citations82
USD304151SOct 24, 1989
Refillable propane torch
COOPER IND INC17 citations81
US4805301AFeb 21, 1989
Conductor stripping tool
COOPER IND INC21 citations80
USD311644SOct 30, 1990
Molded tool case
COOPER IND INC22 citations76
USD318815SAug 6, 1991
Tape measuring housing
COOPER IND INC7 citations74
USD307233SApr 17, 1990
Scissors
COOPER IND INC13 citations74
USD301299SMay 30, 1989
Battery operated tool housing
COOPER IND INC9 citations74
USD298207SOct 25, 1988
Electric hand tool
COOPER IND INC15 citations73
US5092049AMar 3, 1992
Lever actuated scissors
COOPER IND INC13 citations71
US4958435ASep 25, 1990
Ripping scissors
COOPER IND INC10 citations71
USD308812SJun 26, 1990
Retractable scissors
COOPER IND INC7 citations71
USD301115SMay 16, 1989
Precision wire stripper
COOPER IND INC6 citations71
USD342660SDec 28, 1993
Screwdriver handle sleeve
COOPER IND INC5 citations63
USD308136SMay 29, 1990
Base for storing and carrying a propane torch and accessories
COOPER IND INC0 citations48
CHAPIN DAVID S
5 patentsUS5001843AMar 26, 1991
Carpenter's tape machine
CHAPIN DAVID S22 citations92
US4998356AMar 12, 1991
Carpenter's tape measure with push on-push off locking mechanism
CHAPIN DAVID S53 citations92
US9101724B2Aug 11, 2015
Pen injection device needle dispensing and storing apparatus
CHAPIN DAVID S14 citations83
US8887912B2Nov 18, 2014
Living hinge needle assembly for medicament delivery device
CHAPIN DAVID S5 citations81
US5136900AAug 11, 1992
Fused hand tool
CHAPIN DAVID S7 citations73