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

Gregory A. Marking — 20 Patents

OSOsram Sylvania: 17 patents #32 of 820Top 4%
Okemos, MI: #18 of 344 inventorsTop 6%
Michigan: #4,078 of 86,293 inventorsTop 5%
Overall (All Time): #214,803 of 4,157,543Top 6%
20 Patents All Time
Gregory A. Marking has been granted 20 US patents while listed as an inventor at Osram Sylvania. The first was granted in 1996 and the most recent in December 2011. Gregory A. Marking ranks #214,803 of 4,157,543 US inventors in our database (top 5.2%). Patent records list Gregory A. Marking in Okemos, MI, US.

Patents per Year

Patents granted per year, 1996 to 2011Bar chart with a peak of 5 patents in 2008.peak 51996: 1 patents19961997: 2 patents1999: 2 patents19992001: 1 patents2003: 1 patents20032004: 1 patents2007: 1 patents20072008: 5 patents2009: 2 patents20092010: 3 patents2011: 1 patents2011

Issued Patents All Time

Showing 1–20 of 20 patents

Patent #TitleCo-InventorsDate
8070985 Method of making a lead-activated strontium hexaborate phosphor Eric R. Mercer, Chad E. DeForest 2011-12-06
7846352 Method of producing UV-emitting magnesium pentaborate phosphors Chen-Wen Fan, Thomas M. Snyder 2010-12-07
7846353 Method of making green-emitting borate phosphors James Edward Murphy 2010-12-07
7846354 Method of making red-emitting borate phosphor Thomas M. Snyder 2010-12-07
7535176 VUV-excited device with blue-emitting phosphor Chung-Nin Chau, Thomas M. Snyder, Shellie K. Northrop, Chen-Wen Fan 2009-05-19
7497974 Ce,Pr-coactivated yttrium phosphate phosphor and lamp containing same Chen-Wen Fan, Thomas M. Snyder 2009-03-03
7449129 Ce,Pr-coactivated strontium magnesium aluminate phosphor and lamp containing same Thomas M. Snyder 2008-11-11
7435358 UVC-emitting Sr(Al,Mg)12O19:Pr phosphor and lamp containing same Thomas M. Snyder 2008-10-14
7419621 UV-emitting phosphor and lamp containing same Thomas M. Snyder 2008-09-02
7396491 UV-emitting phosphor and lamp containing same Thomas M. Synder 2008-07-08
7396490 Ce,Pr-coactivated calcium pyrophosphate phosphor and lamp containing same Thomas M. Synder 2008-07-08
7232531 Method of removing impurities from a SrB4O7:Eu phosphor 2007-06-19
6805813 High brightness green-emitting phosphor Chung-Nin Chau 2004-10-19
6610217 ZnS:Ag,A1 phosphor and method of making same Courtney Spencer Warren, Brian Payne 2003-08-26
6245260 Mixed flux for yttrium tantalate x-ray phosphors 2001-06-12
5938974 Yttrium tantalate x-ray phosphors with reduced persistence Vaddi B. Reddy 1999-08-17
5900188 Yttrium tantalate x-ray phosphors with reduced persistence Vaddi B. Reddy, Kenneth T. Reilly 1999-05-04
5618471 Alkali metal quaternary chalcogenides and process for the preparation thereof Mercouri G. Kanatzidis, Ju H. Liao 1997-04-08
5614128 Alkali metal quaternary chalcogenides and process for the preparation thereof Mercouri G. Kanatzidis, Ju H. Liao 1997-03-25
5531936 Alkali metal quaternary chalcogenides and process for the preparation thereof Mercouri G. Kanatzidis, Ju H. Liao 1996-07-02