Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6139982 | Magnetic recording medium having a binder system including a polyurethane polymer having both phosphonate and quaternary ammonium pendant groups | William E. Bottomley, Philip I. Mayo | 2000-10-31 |
| 5712345 | Binder system for magnetic media | James G. Carlson, Christopher M. Evans, James A. Greczyna, Ramesh C. Kumar, Colin F. Norman +1 more | 1998-01-27 |
| 5501903 | Magnetic recording medium having a binder system including a non halogenated vinyl polymer and a polyurethane polymer each with specified pendant groups | James G. Carlson, Christopher M. Evans, James A. Greczyna, Ramesh C. Kumar, Colin F. Norman +1 more | 1996-03-26 |