DG

David B. Griffith

EA E.I. Du Pont De Nemours And: 4 patents #1,770 of 8,010Top 25%
📍 Houston, TX: #5,364 of 21,073 inventorsTop 30%
🗺 Texas: #33,546 of 125,132 inventorsTop 30%
Overall (All Time): #1,260,364 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
7132484 Continuous process for producing poly (trimethylene terephthalate) Carl J. Giardino, Chungfah Howard Ho, James M. Howell, Michelle Watkins 2006-11-07
6951954 Continuous process for producing bis(3-hydroxypropyl) terephthalate Carl J. Giardino, Chungfah Howard Ho, James M. Howell, Michelle Watkins 2005-10-04
6538076 Continuous process for producing poly(trimethylene terephthalate) Carl J. Giardino, Chungfah Howard Ho, James M. Howell, Michelle Watkins 2003-03-25
6353062 Continuous process for producing poly(trimethylene terephthalate) Carl J. Giardino, Chungfah Howard Ho, James M. Howell, Michelle Watkins, Joseph J. Duffy 2002-03-05