DH

David E. Herman

TO The Standard Oil: 6 patents #73 of 601Top 15%
GI Gulf & Western Industries: 2 patents #5 of 18Top 30%
GM Gulf Eastern Manufacturing: 1 patents #28 of 102Top 30%
Overall (All Time): #430,032 of 4,157,543Top 15%
12
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4671801 Method for the beneficiation, liquefaction and recovery of coal and other solid carbonaceous materials Lester E. Burgess, Robert Hagstrom, Phillip E. McGarry 1987-06-09
4650567 Apparatus and method for flotation separation utilizing an improved spiral spray nozzle Phillip E. McGarry, Robert A. Treskot, David C. Fistner, Sr. 1987-03-17
4605494 Multistream, multiproduct, pressure manipulation beneficiation arrangement Lester E. Burgess, Phillip E. McGarry 1986-08-12
4605420 Method for the beneficiation of oxidized coal Phillip E. McGarry, Robert A. Treskot, David C. Fistner, Sr. 1986-08-12
4597858 Multistream, multiproduct beneficiation arrangement Lester E. Burgess, Phillip E. McGarry 1986-07-01
4583990 Method for the beneficiation of low rank coal Phillip E. McGarry 1986-04-22
4564369 Apparatus for the enhanced separation of impurities from coal Lester E. Burgess, Karl M. Fox, Phillip E. McGarry 1986-01-14
4536372 Apparatus for beneficiating coal Lester E. Burgess, Karl M. Fox, Phillip E. McGarry 1985-08-20
4514291 Apparatus and method for flotation separation utilizing an improved spiral spray nozzle Phillip E. McGarry, Robert A. Treskot, David C. Fistner, Sr. 1985-04-30
4406664 Process for the enhanced separation of impurities from coal and coal products produced therefrom Lester E. Burgess, Karl M. Fox, Phillip E. McGarry 1983-09-27
4347126 Apparatus and method for flotation separation utilizing a spray nozzle Phillip E. McGarry 1982-08-31
4332593 Process for beneficiating coal Lester E. Burgess, Karl M. Fox, Phillip E. McGarry 1982-06-01