DW

David R. Walker

DR Dx Resources: 5 patents #1 of 1Top 100%
ME Meadwestvaco: 3 patents #53 of 278Top 20%
The Dow Chemical: 2 patents #1,449 of 4,115Top 40%
RD Rf Micro Devices: 1 patents #192 of 325Top 60%
University Of Texas System: 1 patents #2,951 of 6,559Top 45%
WE Westvaco: 1 patents #184 of 364Top 55%
ZL Zbd Displays Limited: 1 patents #6 of 16Top 40%
FI Filmtec: 1 patents #7 of 17Top 45%
Nortel Networks Limited: 1 patents #2,518 of 5,294Top 50%
Overall (All Time): #138,026 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 25 most recent of 28 patents

Patent #TitleCo-InventorsDate
11046925 System and process for producing biogas from an ethanol slurry mix 2021-06-29
9446326 Method and apparatus for ethanol production 2016-09-20
9034429 Method for patterning a surface using selective adhesion Guy Peter Bryan-Brown, John Clifford Jones 2015-05-19
8674714 System and method for probing work pieces Anton Kitai, Paul Andrew Labelle, Robert Glenn Parker 2014-03-18
D699141 RFID tag 2014-02-11
7746179 Method and apparatus for selecting a frequency generating element Nathaniel King, Jr., Robert A. Koupal 2010-06-29
7179382 Coated activated carbon for automotive emission control Laurence H. Hiltzik, Edward D. Tolles 2007-02-20
6696384 Method of making shaped activated carbon Peter D. McCrae, Tiejun Zhang 2004-02-24
6573212 Method of making shaped activated carbon Peter D. McCrae, Tiejun Zhang 2003-06-03
6556744 Reduction of dispersion effects in optical transmission fibre systems Robert K. Brimacombe 2003-04-29
6472343 Shaped activated carbon Peter D. McCrae, Tiejun Zhang 2002-10-29
6457348 High pressure steam line target inserter 2002-10-01
6136077 Steam absorption apparatus 2000-10-24
6106673 Method for separating components of a fermentation process byproduct containing oil bound with fibers 2000-08-22
5520780 Method and apparatus for de-inking newsprint using counterflow extractor 1996-05-28
5476550 Method and apparatus for extracting soluble and dispersible materials from products using a slotted scroll extractor 1995-12-19
5409541 Method and apparatus for extracting soluble and dispersible materials from products using a slotted scroll extractor 1995-04-25
5326538 Closed sterilization system for treating a product such as toxic or infectious waste 1994-07-05
5285581 Method for drying waste materials 1994-02-15
5262056 Polyamides and polypyrrolones for fluid separation membranes William J. Koros 1993-11-16
5137545 Vapor clarification system and method 1992-08-11
5114684 In-line electromagnetic energy wave applicator 1992-05-19
5080581 Method and apparatus for drying waste materials 1992-01-14
5054405 High temperature turbulent gasification unit and method 1991-10-08
5052313 Waste treatment system and method 1991-10-01