DE

David J. Emmons

AD Ademco: 34 patents #2 of 489Top 1%
HO Honeywell: 31 patents #151 of 14,447Top 2%
PP Pur Water Purification Products: 16 patents #3 of 70Top 5%
AT Adc Telecommunications: 12 patents #105 of 766Top 15%
RE Recovery Engineering: 9 patents #2 of 20Top 10%
The Procter & Gamble: 6 patents #2,151 of 10,133Top 25%
HL Helen Of Troy Limited: 4 patents #136 of 496Top 30%
WH Whirlpool: 2 patents #1,524 of 3,480Top 45%
UM University of Minnesota: 1 patents #1,216 of 2,951Top 45%
📍 Plymouth, MN: #5 of 1,545 inventorsTop 1%
🗺 Minnesota: #137 of 52,454 inventorsTop 1%
Overall (All Time): #10,320 of 4,157,543Top 1%
118
Patents All Time

Issued Patents All Time

Showing 101–118 of 118 patents

Patent #TitleCo-InventorsDate
5709794 Low-cost portable water filter Timothy Jordan Prescott, Daniel T. West 1998-01-20
D386041 Water purification pitcher John Tanner, Eric J. Mueller, Paul D. Rothstein, Alan Carlson, Shaohui Qiu 1997-11-11
D377388 Water purifier Jeffrey A. Weber 1997-01-14
5588087 Overlapping fusion attenuator Liang-Ju Lu 1996-12-24
5577149 Fiber optic polishing fixture Bruno B. Averbeck, Robert J. Ziebol 1996-11-19
5536394 End of life mechanism for water treatment cartridge James L. Lund, Richard D. Hembree 1996-07-16
5432875 Fiber optic monitor module Jeff L. Korkowski 1995-07-11
5381497 Fiber optic connector with vented ferrule holder David S. Toland, Michael McGuire, Gary S. Farrell, Kevin Jon Pitkin, Michael S. Beard +2 more 1995-01-10
5363465 Fiber optic connector module Jeff L. Korkowski, Dalen Defoe 1994-11-08
5319728 High return loss fixed attenuator Liang-Ju Lu, George B. Pfeffer 1994-06-07
5319733 Variable fiber optical attenuator Liang-Ju Lu 1994-06-07
5308656 Electroformed mask and use therefore Douglass H. Atwill, II 1994-05-03
5305405 Patch cord Liang-Ju Lu, James W. Conroy, George B. Pfeffer 1994-04-19
5123219 Method for constructing optical switch Michael S. Beard, Harold A. Roberts 1992-06-23
5037176 Optical switch with reduced reflection Harold A. Roberts, Robert A. Eno, Calvin G. Nelson, Liang-Ju Lu, Robert J. Ziebol 1991-08-06
5031994 Optical switch assembly 1991-07-16
4837406 Face plate and electrical component assembly 1989-06-06
4644675 Page turning device John G. Berger 1987-02-24