DW

David J. Waller

HP HP: 23 patents #1,175 of 16,619Top 8%
📍 Corvallis, OR: #139 of 1,763 inventorsTop 8%
🗺 Oregon: #1,828 of 28,073 inventorsTop 7%
Overall (All Time): #186,110 of 4,157,543Top 5%
23
Patents All Time

Issued Patents All Time

Showing 1–23 of 23 patents

Patent #TitleCo-InventorsDate
7753471 Printing mechanism and method Kris M. English, Jim Plymale 2010-07-13
7204933 Method of forming pillars in a fully integrated thermal inkjet printhead Naoto Kawamura, David R. Thomas, Timothy L. Weber 2007-04-17
7104636 Pen maintenance system and method for operating same Jeremy A. Davis, Kit Harper 2006-09-12
7048353 Printhead maintenance system Jeremy A. Davis, Kit Harper 2006-05-23
6905619 Method of forming pillars in a fully integrated thermal inkjet printhead Naoto Kawamura, David R. Thomas, Timothy L. Weber 2005-06-14
6846060 Printhead servicing mechanism and method Jeffrey K. Pew 2005-01-25
6843550 Printhead servicing mechanism and method Kit Harper 2005-01-18
6783689 Method of forming pillars in a fully integrated thermal inkjet printhead Naoto Kawamura, David R. Thomas, Timothy L. Weber 2004-08-31
6722752 Pen maintenance system and method for operating same Jeremy A. Davis, Kit Harper 2004-04-20
6660175 Method of forming pillars in a fully integrated thermal inkjet printhead Naoto Kawamura, David R. Thomas, Timothy L. Weber 2003-12-09
6641744 Method of forming pillars in a fully integrated thermal inkjet printhead Naoto Kawamura, David R. Thomas, Timothy L. Weber 2003-11-04
6540323 Snout-encompassing capping system for inkjet printheads Daniel D. Dowell, Louis Barinaga, Kit Harper, Jeremy A. Davis 2003-04-01
6527369 Asymmetric printhead orifice Timothy L. Weber, Thomas Linder 2003-03-04
6428156 Ink delivery system and method for controlling fluid pressure therein Melissa D. Boyd, John Koegler 2002-08-06
6354694 Method and apparatus for improved ink-drop distribution in ink-jet printing Timothy L. Weber, John Paul Harmon, S. Dana Seccombe, Colin C. Davis, Paul J. McClellan 2002-03-12
6309054 Pillars in a printhead Naoto Kawamura, David R. Thomas, Timothy L. Weber 2001-10-30
6250738 Inkjet printing apparatus with ink manifold Timothy Beerling, Melissa D. Boyd, James W Pearson, Marvin Glenn Wong 2001-06-26
6155670 Method and apparatus for improved ink-drop distribution in inkjet printing Timothy L. Weber, John Paul Harmon, S. Dana Seccombe, Colin C. Davis, Paul J. McClellan 2000-12-05
6126276 Fluid jet printhead with integrated heat-sink Colin C. Davis, Naoto Kawamura, Timothy Beerling, David R. Thomas, William R. Knight +1 more 2000-10-03
6099108 Method and apparatus for improved ink-drop distribution in ink-jet printing Timothy L. Weber, John Paul Harmon, S. Dana Seccombe, Colin C. Davis, Paul J. McClellan 2000-08-08
6003977 Bubble valving for ink-jet printheads Timothy L. Weber, Kenneth E. Trueba, David R. Thomas 1999-12-21
5988786 Articulated stress relief of an orifice membrane Timothy L. Weber, Kenneth E. Trueba, Hai Quang Tran 1999-11-23
5969736 Passive pressure regulator for setting the pressure of a liquid to a predetermined pressure differential below a reference pressure Leslie A. Field, Phillip W. Barth, George D. Zuras, Jr., Paul Merchant, Storrs T. Hoen +1 more 1999-10-19