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John L. Stoffel

HP HP: 29 patents #877 of 16,619Top 6%
EA E.I. Du Pont De Nemours And: 4 patents #1,770 of 8,010Top 25%
IP International Paper: 1 patents #445 of 935Top 50%
📍 San Diego, CA: #1,090 of 23,606 inventorsTop 5%
🗺 California: #14,433 of 386,348 inventorsTop 4%
Overall (All Time): #103,213 of 4,157,543Top 3%
34
Patents All Time

Issued Patents All Time

Showing 1–25 of 34 patents

Patent #TitleCo-InventorsDate
9855780 Print media for inkjet printing Silke Courtenay, Thomas Oswald 2018-01-02
9631318 Printable recording media Lokendra Pal, Xulong Fu 2017-04-25
9545810 Low grammage recording medium Gracy Apprisiani Wingkono, Thomas Oswald 2017-01-17
9435079 Uncoated recording media Thomas Oswald, George B. Clifton, Robert J. Lawton 2016-09-06
9127407 Sizing composition Steven L. Webb, John C. Helfrick, Silke Courtenay 2015-09-08
9068292 Uncoated recording media Thomas Oswald, Xulong Fu, Lokendra Pal, Silke Courtenay 2015-06-30
9056515 Paper enhancement treatment with decreased calcium chloride Gracy Apprisiani Wingkono, Xiaogi Zhou 2015-06-16
8758886 Recording sheet with improved image dry time Michael F. Koenig, Sen Yang, Steve Schultz, Hai Quang Tran, Ronald A. Askeland +3 more 2014-06-24
8123907 Composition and ink receiving system incorporating the composition Hai Quang Tran, Ronald A. Askeland, Lawrence Gibson, Steven D. Schultz, Michael F. Koenig +3 more 2012-02-28
8075962 Newsprint media for inkjet printing Hai Quang Tran, Kelly Ronk, Rodney D. Stramel, Xiaoqi Zhou 2011-12-13
8007096 Ink compositions for use in highlighter markers and associated methods Christian Schmid, Bill Sperry 2011-08-30
7591889 Dissimilar pigments for use in dark and light inkjet inks David Tyvoll 2009-09-22
7582188 Composition and ink receiving system incorporating the composition Hai Quang Tran, Ronald A. Askeland, Lawrence Gibson, Steven D. Schultz, Michael F. Koenig +3 more 2009-09-01
7553395 Print media and methods of making print media Bill Sperry, Richard J. McManus, Hai Quang Tran, Yi-Hua Tsao 2009-06-30
7111933 Ink-jet systems and methods using visible and invisible ink Peter C. Morris, Glen A. Hopkins 2006-09-26
6824598 Inkjet ink sets with combinations of light dye load and dark dye load Matthew Thornberry, Eric L. Burch 2004-11-30
6521030 Inkjet ink sets with high ligthfastness dye 2003-02-18
6497479 Higher organic inks with good reliability and drytime Anne M. Kelly-Rowley, Keshava A. Prasad 2002-12-24
6458195 Use of hydrolyzed Reactive Red 23 Peter C. Morris 2002-10-01
6139139 Color inkjet printer with pens containing reactive inks James P. Shields, Mark S. Hickman, Raymond Adamic, Mark L. Choy 2000-10-31
5946012 Reliable high performance drop generator for an inkjet printhead Kenneth J. Courian, Richard A. Sader, Keshava A. Prasad, Steven L. Webb, David H. Donovan +4 more 1999-08-31
5880758 Printer with pen containing a low dot spread black ink and a high dot spread color ink Keshava A. Prasad, Ronald A. Askeland, Michele Shepard, Frank Drogo, Leonard Slevin +2 more 1999-03-09
5874974 Reliable high performance drop generator for an inkjet printhead Kenneth J. Courian, Richard A. Sader, Keshava A. Prasad, Steven L. Webb, David H. Donovan +4 more 1999-02-23
5801738 Process for alleviating bleed and improving color in printed elements Arthur C. Shor, Harry J. Spinelli, Sheau-Hwa Ma, Howard Matrick, Mark L. Choy +1 more 1998-09-01
5745140 Color ink-jet printer with pigment black and dye-based color inks Keshava A. Prasad, Ronald A. Askeland, Michele Shepard, Frank Drogo, Leonard Slevin +2 more 1998-04-28