Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
DE

David A. Estell

DUDanisco Us: 65 patents #1 of 467Top 1%
GIGenencor International: 61 patents #1 of 377Top 1%
The Procter & Gamble: 9 patents #1,452 of 10,133Top 15%
GEGenencor: 7 patents #1 of 29Top 4%
Genentech: 2 patents #1,171 of 2,392Top 50%
The Goodyear Tire & Rubber: 2 patents #1,342 of 3,057Top 45%
GTGoverning Council Of The University Of Toronto: 1 patents #286 of 760Top 40%
Palo Alto, CA: #52 of 9,675 inventorsTop 1%
California: #1,075 of 386,348 inventorsTop 1%
Overall (All Time): #6,825 of 4,157,543Top 1%
143 Patents All Time

Issued Patents All Time

Showing 101–125 of 143 patents

Patent #TitleCo-InventorsDate
6905868 Proteases from gram-positive organisms 2005-06-14
6897049 Proteins producing an altered immunogenic response and methods of making and using the same Fiona A. Harding 2005-05-24
6881562 Proteases from gram-positive organisms 2005-04-19
6872807 Proteases from gram positive organisms 2005-03-29
6849440 Proteases from gram-positive organisms 2005-02-01
6838269 Proteins producing an altered immunogenic response and methods of making and using the same Fiona A. Harding 2005-01-04
6835550 Mutant proteins having lower allergenic response in humans and methods for constructing, identifying and producing such proteins Fiona A. Harding 2004-12-28
6833261 Proteases from gram-positive organisms 2004-12-21
6833265 Proteases from gram-positive organisms 2004-12-21
6794179 Proteases from gram positive organisms 2004-09-21
6762039 Bacillus subtillis with an inactivated cysteine protease-1 2004-07-13
6723550 Proteases from gram-positive organisms 2004-04-20
6642011 Human protease and use of such protease for pharmaceutical applications and for reducing the allergenicity of non-human proteins 2003-11-04
6599731 Proteases from gram positive organisms 2003-07-29
6596525 Mutant proteins having lower allergenic response in humans and methods for constructing, identifying and producing such proteins Fiona A. Harding 2003-07-22
6528255 Proteases from gram positive organisms 2003-03-04
6521440 Proteases from gram-positive organisms 2003-02-18
6489108 Proteases from gram positive organisms 2002-12-03
6465186 Proteases from gram positive organisms 2002-10-15
6465235 Non-human carbonyl hydrolase mutants, DNA sequences and vectors encoding same and hosts transformed with said vectors Richard R. Bott, Robert M. Caldwell, Brian C. Cunningham, Scott D. Power, James A. Wells 2002-10-15
6316241 Alpha/beta hydrolase-fold enzymes 2001-11-13
6300117 Proteases from gram-positive organisms 2001-10-09
6218165 Mutant proteins having lower allergenic response in humans and methods for constructing, identifying and producing such proteins Fiona A. Harding 2001-04-17
5972682 Enzymatically active modified subtilisins Richard R. Bott, Robert M. Caldwell, Brian C. Cunningham, Scott D. Power, James A. Wells 1999-10-26
5955340 Modified subtilisins having amino acid alterations Richard R. Bott, Robert M. Caldwell, Brian C. Cunningham, Scott D. Power, James A. Wells 1999-09-21