Inventor
LAWTON JOHN A
US24 patents
⚠️ This page may combine multiple inventors who share the name “LAWTON JOHN A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DU PONT
12 patentsUS5474719ADec 12, 1995
Method for forming solid objects utilizing viscosity reducible compositions
DU PONT213 citations99
US5529473AJun 25, 1996
Solid imaging system using differential tension elastomerc film
DU PONT439 citations98
US5391072AFeb 21, 1995
Solid imaging apparatus having a semi-permeable film
DU PONT496 citations98
US5143817ASep 1, 1992
Solid imaging system
DU PONT153 citations98
US5122441AJun 16, 1992
Method for fabricating an integral three-dimensional object from layers of a photoformable composition
DU PONT234 citations98
US5176188AJan 5, 1993
Investment casting method and pattern material comprising thermally-collapsible expanded microspheres
DU PONT79 citations96
US5094935AMar 10, 1992
Method and apparatus for fabricating three dimensional objects from photoformed precursor sheets
DU PONT110 citations96
US5014207AMay 7, 1991
Solid imaging system
DU PONT96 citations96
US5158858AOct 27, 1992
Solid imaging system using differential tension elastomeric film
DU PONT57 citations95
US5236812AAug 17, 1993
Solid imaging method and apparatus
DU PONT103 citations93
US5429908AJul 4, 1995
Exposure method for reducing distortion in models produced through solid imaging by forming a non-continuous image of a pattern which is then imaged to form a continuous hardened image of the pattern
DU PONT74 citations91
US5193024AMar 9, 1993
Liquid/vapor optical modulator
DU PONT7 citations71
DSM DESOTECH INC
4 patentsUS6811937B2Nov 2, 2004
Radiation-curable resin composition and rapid prototyping process using the same
DSM DESOTECH INC42 citations92
US6379866B2Apr 30, 2002
Solid imaging compositions for preparing polypropylene-like articles
DSM DESOTECH INC39 citations92
US6762002B2Jul 13, 2004
Solid imaging compositions for preparing polypropylene-like articles
DSM DESOTECH INC8 citations74
US6749976B2Jun 15, 2004
Solid imaging compositions for preparing polypropylene-like articles
DSM DESOTECH INC5 citations74
DSM IP ASSETS BV
3 patentsUS7183040B2Feb 27, 2007
Radiation curable resin composition and rapid prototyping process using the same
DSM IP ASSETS BV29 citations89
US7696260B2Apr 13, 2010
Cationic compositions and methods of making and using the same
DSM IP ASSETS BV11 citations84
USRE39106EMay 23, 2006
Photohardenable epoxy composition
DSM IP ASSETS BV1 citations47