Inventor
HUGHES DAVID W
US25 patents
⚠️ This page may combine multiple inventors who share the name “HUGHES DAVID W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MCDONALD WITHERS & HUGHES INC
6 patentsUS5385105AJan 31, 1995
Burnable wastes collector with liquid absorber and identifier
MCDONALD WITHERS & HUGHES INC156 citations97
US5152394AOct 6, 1992
Personal use syringe dispensing and collecting system
MCDONALD WITHERS & HUGHES INC102 citations96
US5167193ADec 1, 1992
Medical wastes disposal system
MCDONALD WITHERS & HUGHES INC96 citations95
US5163375ANov 17, 1992
Medical wastes disposal system
MCDONALD WITHERS & HUGHES INC62 citations95
US5323719AJun 28, 1994
Contaminated wastes disposal system
MCDONALD WITHERS & HUGHES INC44 citations91
US5259501ANov 9, 1993
Personal use syringe collecting and disposing system
MCDONALD WITHERS & HUGHES INC47 citations91
VETCO OFFSHORE IND INC
5 patentsUS4637419AJan 20, 1987
Subsea control pod valve assembly
VETCO OFFSHORE IND INC31 citations92
US4613162ASep 23, 1986
Misalignment tieback tool - non-rotating casing
VETCO OFFSHORE IND INC26 citations92
US4607865AAug 26, 1986
Connector, ratcheting type
VETCO OFFSHORE IND INC46 citations92
US4611829ASep 16, 1986
Misalignment tieback tool - swivel connection
VETCO OFFSHORE IND INC22 citations82
US4613164ASep 23, 1986
Misalignment tieback tool - rotating casing
VETCO OFFSHORE IND INC9 citations74
DOW CHEMICAL CO
4 patentsUS4495309AJan 22, 1985
Reaction injection molded polyurethanes, polyureas and polyurea-urethanes employing thiapolycyclic polyisocyanates
DOW CHEMICAL CO2 citations60
US4477644AOct 16, 1984
Reaction injection molded polyurethanes employing thiapolycyclic polyahls as chain extenders
DOW CHEMICAL CO2 citations60
US4581435AApr 8, 1986
Alkyl-substituted thiapolycyclic polyahl and polyurethanes, polyamides and polyureas based thereon
DOW CHEMICAL CO1 citations52
US4458061AJul 3, 1984
9-Thiabicyclononanediisocyanates and polymers made therefrom
DOW CHEMICAL CO0 citations52