DB

David A. Barclay

CE Cem: 14 patents #8 of 51Top 20%
CV Condea Vista: 2 patents #5 of 34Top 15%
SG Sasoi Performance Chemicals Gmbh: 2 patents #3 of 25Top 15%
VC Vista Chemical: 2 patents #10 of 46Top 25%
S( Sasol (Usa): 1 patents #5 of 23Top 25%
U.S. Philips: 1 patents #4,133 of 8,851Top 50%
Overall (All Time): #180,047 of 4,157,543Top 5%
23
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11884594 High strength shaped aluminas and a method of producing such high strength shaped aluminas Mark M. Chavez 2024-01-30
11091396 High strength shaped aluminas and a method of producing such high strength shaped aluminas Mark M. Chavez 2021-08-17
10527530 Pressure stepped microwave assisted digestion Joseph J. Lambert, William Edward Jennings, David L. Herman 2020-01-07
10067043 Pressure stepped microwave assisted digestion Joseph J. Lambert, William Edward Jennings, David L. Herman 2018-09-04
10023785 Thixotropic agents and methods of use 2018-07-17
9943823 Pressure stepped microwave assisted digestion Joseph J. Lambert, William Edward Jennings, David L. Herman 2018-04-17
9340432 Process for the synthesis of magnesium aluminate spinels Brian Peoples, Mark M. Chavez, Allison L. Hann, Andrea Brasch, Klaus Diblitz 2016-05-17
9237608 Pressure stepped microwave assisted digestion Joseph J. Lambert, William Edward Jennings, David L. Herman 2016-01-12
8921119 High temperature high pressure vessel for microwave assisted chemistry Wyatt Price Hargett, Jr. 2014-12-30
7829040 High temperature high pressure vessel for microwave assisted chemistry Wyatt Price Hargett, Jr. 2010-11-09
6288379 Use of continuously variable power in microwave assisted chemistry Gary Roger Greene 2001-09-11
6207462 Microwave apparatus and method for analysis of asphalt-aggregate compositions Ali Regimand 2001-03-27
6190917 Microwave apparatus and method for analysis of asphalt-aggregate compositions Ali Regimand 2001-02-20
6084226 Use of continuously variable power in microwave assisted chemistry Gary Roger Greene 2000-07-04
5972711 Microwave assisted chemical processes William Edward Jennings, Edward Earl King 1999-10-26
5840583 Microwave assisted chemical processes William Edward Jennings, Edward Earl King 1998-11-24
5796080 Microwave apparatus for controlling power levels in individual multiple cells William Edward Jennings, Dennis P. Manchester, Edward Earl King 1998-08-18
5569325 Process for growing crystals Duane J. Lewis, Lewis B. Decker, Jr., William R. Carradine 1996-10-29
5531976 Preparation of alumina having increased porosity Lewis B. Decker, Jr., Dwight D. Erickson 1996-07-02
5316752 Process for preparing mixed oxides Ronald L. Beggs, Duane J. Lewis 1994-05-31
5215715 Microwave heated digesting system for digesting materials to be analyzed Stephen John Haswell 1993-06-01
4746503 Method of treating alumina to increase slurry life Daniel T. Plummer 1988-05-24
4608511 Energy filter for a Geiger-Muller tube Peter H. Burgess 1986-08-26