Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5399737 | Quaternary ammonium siloxane compounds and methods for their use | Joonsup Park | 1995-03-21 |
| 5133745 | Ultraviolet absorbing hydrogels | Joonsup Park, Christina G. Smith | 1992-07-28 |
| 4737558 | Siloxane copolymers for ophthalmic applications | Joonsup Park | 1988-04-12 |
| 4690993 | p-(2-Hydroxy hexafluoroisopropyl) styrene [HFIS] monomer for ophthalmic applications | Joonsup Park | 1987-09-01 |
| 4645811 | Material used for optical devices | Wilhelm F. Kunzler | 1987-02-24 |
| 4640965 | Hydrogel compositions using p-(2-hydroxyhexafluoroisopropyl) styrene as a comonomer | Joonsup Park | 1987-02-03 |
| 4640941 | Hydrogels containing siloxane comonomers | Joonsup Park | 1987-02-03 |
| 4633003 | Siloxane monomers for ophthalmic applications | Joonsup Park | 1986-12-30 |
| 4276402 | Polysiloxane/acrylic acid/polcyclic esters of methacrylic acid polymer contact lens | Richard C. Chromecek, William G. Deichert, Martin F. VanBuren | 1981-06-30 |
| 4208362 | Shaped body of at least two polymerized materials and method to make same | William G. Deichert, Kai C. Su | 1980-06-17 |