Inventor · disambiguated record
Robert P. Held
Also filed as: HELD ROBERT · HELD ROBERT F · HELD ROBERT O · HELD ROBERT O'NEIL
41 granted patents·11 pending applications·1,123 citations·filing 1977–2014
98Inventor score
Top patents by PatentIndex Score
52 records- 0198US6087416AAqueous pigmented ink jet inks for printing on vinylsDU PONT·Filed 1998·Granted Jul 11, 2000·175 cites·9 claims
- 0296US5429860AReactive media-ink system for ink jet printingDU PONT·Filed 1994·Granted Jul 4, 1995·131 cites·16 claims
- 0395US6852156B2Self-dispersing pigment and process of making and use of sameDU PONT·Filed 2001·Granted Feb 8, 2005·137 cites·42 claims
- 0494US5853861AInk jet printing of textilesDU PONT·Filed 1997·Granted Dec 29, 1998·94 cites·10 claims
- 0594US5852075ASurfactant system for ink jet inks for printing on hydrophobic surfacesDU PONT·Filed 1997·Granted Dec 22, 1998·89 cites·10 claims
- 0694US5537137AReactive media-ink system for ink jet printingDU PONT·Filed 1995·Granted Jul 16, 1996·91 cites·7 claims
- 0786US5984467AInk-jet mediaDU PONT·Filed 1996·Granted Nov 16, 1999·41 cites·6 claims
- 0881US6197409B1Ink-jet mediaDU PONT·Filed 1997·Granted Mar 6, 2001·66 cites·18 claims
- 0981US5958561AInk/textile combination having improved propertiesDU PONT·Filed 1997·Granted Sep 28, 1999·25 cites·11 claims
- 1080US5764262AProcess for providing durable images on a printed mediumDU PONT·Filed 1995·Granted Jun 9, 1998·32 cites·10 claims
- 1179US4461823AMultiple transfer of tacky image areas using prolonged tack tonersDU PONT·Filed 1982·Granted Jul 24, 1984·20 cites·20 claims
- 1274US7670291B2Interference-free ultrasound imaging during HIFU therapy, using software toolsUNIV WASHINGTON·Filed 2005·Granted Mar 2, 2010·16 cites·20 claims
- 1374US4147549ALithographic printing plate having addition polymerized areas and binder areasDU PONT·Filed 1977·Granted Apr 3, 1979·20 cites·7 claims
- 1472US4584261AProcess for etching nonphotosensitive layer under washoff photopolymer layerDU PONT·Filed 1984·Granted Apr 22, 1986·21 cites·12 claims
- 1571US8500266B2AB block copolymer dispersants having an ink vehicle soluble blockROBERTS C CHAD·Filed 2009·Granted Aug 6, 2013·2 cites·25 claims
- 1671US7932306B2Amphoteric dispersants and their use in inkjet inksDU PONT·Filed 2008·Granted Apr 26, 2011·2 cites·28 claims
- 1768US8820907B2Amphoteric dispersants and their use in inkjet inksROBERTS C CHAD·Filed 2008·Granted Sep 2, 2014·1 cites·20 claims
- 1867US6020400AInk jet inks containing emulsion polymer additives stabilized with structured polymersDU PONT·Filed 1996·Granted Feb 1, 2000·35 cites·8 claims
- 1964US8258203B2Inkjet ink, ink set and method of using sameHELD ROBERT PAUL·Filed 2006·Granted Sep 4, 2012·2 cites·12 claims
- 2064US4567130AProcess for etching single photopolymer layer utilizing chemically soluble pigmentsDU PONT·Filed 1984·Granted Jan 28, 1986·16 cites·10 claims
- 2161US2011201717A1Actinically curable adhesive compositionDU PONT·Filed 2008·Application pending·0 cites
- 2261US2011021655A1Thermally and actinically curable adhesive compositionDU PONT·Filed 2008·Application pending·0 cites
- 2360US4869996AProcess for preparing negative images on a positive-type tonable photosensitive elementDU PONT·Filed 1987·Granted Sep 26, 1989·15 cites·41 claims
- 2458US4198236AMethod for preparation of lithographic printing plate having addition polymerized areas and binder areasDU PONT·Filed 1978·Granted Apr 15, 1980·12 cites·8 claims
- 2555US4469625AProlonged tack toners for the preparation of electric circuitsDU PONT·Filed 1980·Granted Sep 4, 1984·14 cites·6 claims
- 2653US5275918AUltraviolet curable heat activatable transfer tonersDU PONT·Filed 1991·Granted Jan 4, 1994·12 cites·4 claims
- 2753US2016047096A1Doggy Doo Bag and StickHELD ROBERT·Filed 2014·Application pending·0 cites
- 2852US2011216125A1Yellow pigment dispersionDU PONT·Filed 2009·Application pending·0 cites
- 2949US2005031498A1Air freshener with containerFiled 2003·Application pending·0 cites
- 3048US2013284360A1Actinically curable adhesive compositionHELD ROBERT PAUL·Filed 2012·Application pending·0 cites
- 3146US7735989B2Curable inkjet inkDU PONT·Filed 2006·Granted Jun 15, 2010·0 cites·12 claims
- 3246US5039588ANon-electroscopic prolonged tack tonersDU PONT·Filed 1989·Granted Aug 13, 1991·7 cites·20 claims
- 3345US4264692APhotopolymerized elements having selectively dye absorbed hydrophilic and oleophilic imagesDU PONT·Filed 1979·Granted Apr 28, 1981·7 cites·17 claims
- 3444US5240814ACurable, heat activatable transfer tonersDU PONT·Filed 1991·Granted Aug 31, 1993·7 cites·16 claims
- 3544US2015005466A1Ab block copolymer dispersants having an ink vehicle soluble blockDU PONT·Filed 2013·Application pending·0 cites
- 3640US2005211617A1High throughput flash purification stand and cartridgeSIGMA ALDRICH CO·Filed 2005·Application pending·0 cites
- 3740US2005011821A1High throughput flash purification stand and cartridgeSIGMA ALDRICH CO·Filed 2004·Application pending·0 cites
- 3840US2007139476A1Curable inkjet inkSCHWARTZ NATHANIEL R·Filed 2006·Application pending·0 cites
- 3939US4948701ASilver halide wash-out elementsDU PONT·Filed 1989·Granted Aug 14, 1990·2 cites·16 claims
- 4037USD495887SServeware patternWKI HOLDING CO INC·Filed 2002·Granted Sep 14, 2004·6 cites·1 claims
- 4137US5250387ATransfer process using ultraviolet curable, non-prolonged tack toning materialsDU PONT·Filed 1992·Granted Oct 5, 1993·7 cites·21 claims
- 4237US4567129AProcess for image formation utilizing chemically soluble pigmentsDU PONT·Filed 1984·Granted Jan 28, 1986·4 cites·11 claims
- 4336US2005039631A1Pigmented inkjet ink setFiled 2004·Application pending·0 cites
- 4435US4654296AProcess for making lithographic film using photopolymer diffusion modulation layer for pigmented bottom layerDU PONT·Filed 1986·Granted Mar 31, 1987·3 cites·21 claims
- 4534US5219702AProcess for detackifying transferred toned imagesDU PONT·Filed 1991·Granted Jun 15, 1993·2 cites·17 claims
- 4633US5227278APositive-working, low silver wash-off contact filmDU PONT·Filed 1992·Granted Jul 13, 1993·2 cites·7 claims
- 4731US4923389ANegative working low silver wash-off contact filmDU PONT·Filed 1988·Granted May 8, 1990·1 cites·32 claims
- 4831US4579808AImageable colloidal metal/mercaptan elementsDU PONT·Filed 1984·Granted Apr 1, 1986·1 cites·17 claims
- 4930US5578412APhotosensitive films having a thermally sensitive material containing layer and process for using the sameDU PONT·Filed 1994·Granted Nov 26, 1996·3 cites·4 claims
- 5030US5314784AProcess for detackifying transferred toned imagesDU PONT·Filed 1993·Granted May 24, 1994·0 cites·5 claims
Showing the top 50 of 52 patent records by PatentIndex Score.
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