Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10752603 | Purification of oxydiphthalic anhydrides | Hariharan Ramalingam, Tarun Kumar Pal, Meerakani Mohamed Ali Sait, Thomas Link Guggenheim | 2020-08-25 |
| 8426533 | Process for controlling reaction stoichiometry during polymerization of thermoplastic resins | Roy Ray Odle, Vijay Gopalakrishnan, Narayan Ramesh, Albert Santo Stella, David Bruce Hall | 2013-04-23 |
| 8013173 | Method of purifying dianhydrides, the dianhydrides formed thereby, and polyetherimides formed therefrom | Beatriz Penalver Bernabe, Vijay Gopalakrishnan, Matt Kuhlman, Roy Ray Odle, Eric James Pressman +2 more | 2011-09-06 |
| 7863463 | Method of purifying dianhydrides | Eric James Pressman, Albert Santo Stella, Beatriz Penalver Bernabe, Lee H. Bergman | 2011-01-04 |
| 7772435 | Method of forming a dry quaternary ammonium salt mixture | Thomas Link Guggenheim, Paul Edward Howson, Farid Fouad Khouri, Matthew Hal Littlejohn, Jacob Lee Oberholtzer +3 more | 2010-08-10 |
| 7674920 | Methods for preparing oxydiphthalic anhydrides, oxydiphthalic anhydrides prepared thereby, and polyetherimides derived therefrom | Beatriz Penalver Bernabe, Matt Kuhlman, Roy Ray Odle, Eric James Pressman, Narayan Ramesh +1 more | 2010-03-09 |
| 7495113 | Method of purifying dianhydrides | Eric James Pressman, John Morgan Whitney, Abhijit Namjoshi, Spencer Thomas Oulman | 2009-02-24 |
| 6790934 | Method for purification of aromatic polyethers | Norman Johnson, Raul Eduardo Ayala, Thomas Joseph Fyvie, Amy Rene Freshour, David Woodruff +7 more | 2004-09-14 |
| 6566458 | Polysulfone/polysiloxane polycarbonate block copolymers | Miles A. Duncan, Parfait Jean Marie Likibi | 2003-05-20 |