Copyright © Philip M. Parker, INSEAD. Terms of Use.

| Year | Description |
| 1994 | Invention patented by Olaf Boris Kinstler and Qiao Yan on November 13th, 1994. Abstract: Derivatives of the neurotrophic factors BDNF and NT-3 have been prepared by attachment of these polypeptides to a water soluble polymer, for instance, polyethylene glycol. |
| Source: selected by the editor from original sources. | |
Copyright © Philip M. Parker, INSEAD. Terms of Use.