Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
ZR

Zoltan Ring — 24 Patents

CRCree: 23 patents #61 of 639Top 10%
WOWolfspeed: 1 patents #111 of 187Top 60%
Chapel Hill, NC: #137 of 1,999 inventorsTop 7%
North Carolina: #1,791 of 45,564 inventorsTop 4%
Overall (All Time): #168,038 of 4,157,543Top 5%
24 Patents All Time
Zoltan Ring has been granted 24 US patents while listed as an inventor at Cree. The first was granted in 2002 and the most recent in April 2022. Zoltan Ring ranks #168,038 of 4,157,543 US inventors in our database (top 4.0%). Patent records list Zoltan Ring in Chapel Hill, NC, US.

Issued Patents All Time

Showing 1–24 of 24 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11316028 Nitride-based transistors with a protective layer and a low-damage recess Scott Sheppard, Richard Peter Smith 2022-04-26 $154,014,000
10367074 Method of forming vias in silicon carbide and resulting devices and circuits Scott Sheppard, Helmut Hagleitner 2019-07-30 $55,513,000
9934983 Stress mitigation for thin and thick films used in semiconductor circuitry Donald A. Gajewski, Scott Sheppard, Daniel Namishia 2018-04-03 $11,690,000
9812338 Encapsulation of advanced devices using novel PECVD and ALD schemes Helmut Hagleitner, Daniel Namishia 2017-11-07 $8,789,000
9761439 PECVD protective layers for semiconductor devices Sei-Hyung Ryu, Daniel Namishia 2017-09-12 $3,227,000
9607955 Contact pad Van Mieczkowski, Jason Gurganus, Helmut Hagleitner 2017-03-28 $1,748,000
9530647 Devices including ultra-short gates and methods of forming same Dan Namishia 2016-12-27 $7,582,000
9490169 Method of forming vias in silicon carbide and resulting devices and circuits Scott Sheppard, Helmut Hagleitner 2016-11-08 $2,091,000
9269662 Using stress reduction barrier sub-layers in a semiconductor die Helmut Hagleitner, Daniel Namishia, Fabian Radulescu 2016-02-23 $13,050,000
9142631 Multilayer diffusion barriers for wide bandgap Schottky barrier devices Van Mieczkowski, Helmut Hagleitner 2015-09-22 $2,694,000
8994073 Hydrogen mitigation schemes in the passivation of advanced devices Helmut Hagleitner 2015-03-31 $8,588,000
8563372 Methods of forming contact structures including alternating metal and silicon layers and related devices Helmut Hagleitner, Scott Sheppard, Jason Henning, Jason Gurganus, Dan Namishia 2013-10-22 $9,185,000
8202796 Method of forming vias in silicon carbide and resulting devices and circuits Scott Sheppard, Helmut Hagleitner 2012-06-19 $8,258,000
7906799 Nitride-based transistors with a protective layer and a low-damage recess Scott Sheppard, Richard Peter Smith 2011-03-15 $26,314,000
7892974 Method of forming vias in silicon carbide and resulting devices and circuits Scott Sheppard, Helmut Hagleitner 2011-02-22 $18,341,000
7858460 Passivation of wide band-gap based semiconductor devices with hydrogen-free sputtered nitrides Helmut Hagleitner, Jason Henning, Andrew Mackenzie, Scott Allen, Scott Sheppard +3 more 2010-12-28 $17,928,000
7855401 Passivation of wide band-gap based semiconductor devices with hydrogen-free sputtered nitrides Scott Sheppard, Richard Peter Smith 2010-12-21 $36,454,000
7525122 Passivation of wide band-gap based semiconductor devices with hydrogen-free sputtered nitrides Helmut Hagleitner, Jason Henning, Andrew Mackenzie, Scott Allen, Scott Sheppard +3 more 2009-04-28 $29,279,000
7125786 Method of forming vias in silicon carbide and resulting devices and circuits Scott Sheppard, Helmut Hagleitner 2006-10-24 $4,795,000
7045404 Nitride-based transistors with a protective layer and a low-damage recess and methods of fabrication thereof Scott Sheppard, Richard Peter Smith 2006-05-16 $18,481,000
6946739 Layered semiconductor devices with conductive vias 2005-09-20 $7,378,000
6649497 Method of forming vias in silicon carbide and resulting devices and circuits 2003-11-18 $18,994,000
6515303 Method of forming vias in silicon carbide and resulting devices and circuits 2003-02-04 $11,090,000
6475889 Method of forming vias in silicon carbide and resulting devices and circuits 2002-11-05 $26,185,000