JD

James E. Drummond

HA Hughes Aircraft: 9 patents #110 of 2,963Top 4%
ML Maxwell Laboratories: 4 patents #7 of 58Top 15%
UN Unknown: 4 patents #4,220 of 83,584Top 6%
Merck: 1 patents #5,419 of 9,382Top 60%
Overall (All Time): #241,919 of 4,157,543Top 6%
19
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7122008 Blood pressure diagnostic aid David B. Chang, Jane F. Emerson 2006-10-17
7067258 Human papillomavirus multiplexed assay Mark ESSER, David W. Opalka, Victor Goetz, Michael W. Washabaugh 2006-06-27
6974415 Electromagnetic-acoustic imaging Stephen A. Cerwin, David B. Chang, Jane F. Emerson, Stuart McNaughton 2005-12-13
6535625 Magneto-acoustic imaging David B. Chang, Jane F. Emerson 2003-03-18
5726444 Ultrasonic directional fiber-optic hydrophone 1998-03-10
5402786 Magneto-acoustic resonance imaging 1995-04-04
5311137 Liquid crystal electric field tester for circuit boards David B. Chang, Slava A. Pollack, Michael F. Berg 1994-05-10
5275635 Coastal air wash system Lauren M. Purcell, Victor Vali, Norton L. Moise, Janet McWaid 1994-01-04
5250326 Reduction of nonmetallic coating surface vertical irregularities by electrostatic pressure David B. Chang, Alexander H. Joyce 1993-10-05
5086972 Enhanced electrostatic paint deposition method and apparatus David B. Chang 1992-02-11
5076662 Electro-optical IFS finder I-Fu Shih, David B. Chang, Norton L. Moise 1991-12-31
5050992 Dispersive holographic spectrometer I-Fu Shih 1991-09-24
5041726 Infrared holographic defect detector David B. Chang 1991-08-20
5033203 Curing oven using Wellsbach conversion David B. Chang, Slava A. Pollack, I-Fu Shih 1991-07-23
4792683 Thermal technique for simultaneous testing of circuit board solder joints David B. Chang, Michael F. Berg, Lee Mickelson 1988-12-20
4778493 Electrostatic precipitator with means for the enhanced charging and collection of fine particles Richard A. Fitch 1988-10-18
4349359 Electrostatic precipitator apparatus having an improved ion generating means Richard A. Fitch, Alfred A. Mondelli 1982-09-14
4236900 Electrostatic precipitator apparatus having an improved ion generating means Richard A. Fitch, Alfred A. Mondelli 1980-12-02
4220906 Dielectric thermal power converter 1980-09-02