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

Julian Nikolchev

COConceptus: 22 patents #1 of 54Top 2%
PMPivot Medical: 14 patents #3 of 36Top 9%
PHPro Duct Health: 4 patents #2 of 12Top 20%
Stryker: 3 patents #482 of 1,405Top 35%
CHCytyc Health: 2 patents #3 of 13Top 25%
BEBayer Essure: 2 patents #9 of 30Top 30%
AAAesculap Ag: 2 patents #165 of 481Top 35%
BGBiosensors International Group: 1 patents #44 of 62Top 75%
ATAlien Technology: 1 patents #37 of 54Top 70%
Portola Valley, CA: #34 of 621 inventorsTop 6%
California: #6,736 of 386,348 inventorsTop 2%
Overall (All Time): #45,785 of 4,157,543Top 2%
55 Patents All Time

Issued Patents All Time

Showing 26–50 of 55 patents

Patent #TitleCo-InventorsDate
8171936 Contraceptive transcervical fallopian tube occlusion devices and methods Dai Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich 2012-05-08
8066007 Contraceptive transcervical fallopian tube occlusion devices and their delivery Dai Ton, Amy Thurmond 2011-11-29
8016869 Guidewire-less stent delivery methods 2011-09-13
7921848 Contraceptive transcervical fallopian tube occlusion devices and methods Dai Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich 2011-04-12
7785361 Implant delivery technologies Dai Ton, William R. George, Nicholas DeBeer 2010-08-31
7699884 Method of stenting with minimal diameter guided delivery systems Joe Kavinaugh, Frank P. Becking, William R. George 2010-04-20
7686020 Contraceptive transcervical fallopian tube occlusion devices and methods Dai Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich 2010-03-30
7651521 Corewire actuated delivery system with fixed distal stent-carrying extension Dai Ton, Nicholas DeBeer, William R. George 2010-01-26
7428904 Contraceptive transcervical fallopian tube occlusion devices and their delivery Dai Ton, Amy Thurmond 2008-09-30
6871650 Contraceptive transcervical fallopian tube occlusion devices and their delivery Dai Ton, Amy Thurmond 2005-03-29
6712816 Methods and systems for treating breast tissue David Hung, Chris Ken, Susan Love, Shawn O'Leary 2004-03-30
6705323 Contraceptive transcervical fallopian tube occlusion devices and methods Dai Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich 2004-03-16
6684884 Contraceptive transcervical fallopian tube occlusion devices and methods Dai Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich 2004-02-03
6679266 Contraceptive transcervical fallopian tube occlusion devices and their delivery Dai Ton, Amy Thurmond 2004-01-20
6634361 Contraceptive transcervical fallopian tube occlusion devices and methods Dai Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich 2003-10-21
6589998 Gel composition for filling a breast milk duct prior to surgical excision of the duct or other breast tissue Annette Bianchi, David Hung, Eyal S. Ron, Linda Gont, Susan Love +1 more 2003-07-08
6526979 Contraceptive transcervical fallopian tube occlusion devices and methods Dai Ton, Ashish Khera, Donnell W. Gurskis, Steven Bacich 2003-03-04
6413228 Devices, methods and systems for collecting material from a breast duct David Hung, Christopher G. M. Ken, Xuanmin He, Phillip M. Olsen, Shawn O'Leary +1 more 2002-07-02
6391026 Methods and systems for treating breast tissue David Hung, Chris Ken, Susan Love, Shawn O'Leary 2002-05-21
6336904 Methods and devices for the localization of lesions in solid tissue 2002-01-08
6328709 Devices and methods to identify ductal orifices during nipple aspiration David Hung, Susan Love, William R. George 2001-12-11
6196966 Access catheter and method for maintaining separation between a falloposcope and a tubal wall John Kerin, Charles Milo, James Doty, Dai Ton, Richard E. Hill +2 more 2001-03-06
6176240 Contraceptive transcervical fallopian tube occlusion devices and their delivery Dai Ton, Amy Thurmond 2001-01-23
6145505 Electrically affixed transcervical fallopian tube occlusion devices Dai Ton, Amy Thurmond 2000-11-14
5947958 Radiation-transmitting sheath and methods for its use Robert E. Woodard, Phillip M. Olsen 1999-09-07