DS

David M. Schrader

HY Hydril: 1 patents #73 of 135Top 55%
Overall (All Time): #1,236,830 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7885982 Method and apparatus for creation and maintenance of database structure Robert Wight, Josh Griffin, Timothy Tryzbiak, Anibal Santiago, Dale Couch +2 more 2011-02-08
7584210 Method and apparatus for creation and maintenance of database structure Robert Wight, Josh Griffin, Timothy Tryzbiak, Anibal Santiago, Dale Couch +2 more 2009-09-01
6917941 Method and apparatus for creation and maintenance of database structure Robert Wight, Josh Griffin, Timothy Tryzbiak, Anibal Santiago, Dale Couch +2 more 2005-07-12
4726102 Pipe protector installation device 1988-02-23