Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863231 | Active optical fibre star coupler | Kevin C. Byron, Terry Bricheno, Alan Fielding, Nicholas J. Pitt | 1989-09-05 |
| 4837399 | Napthoquinone antibiotics from fuserium solani | James H. Tatum | 1989-06-06 |
| 4835195 | Dry ground/wet ground calcium carbonate filler compositions | Jerry W. Rayfield, Kenneth E. Weber | 1989-05-30 |