Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6545864 | Notebook computer stand | — | 2003-04-08 |
| 4572220 | Composition for altering the configuration of hair | Du Y. Hsiung, Harold J. Nicholson | 1986-02-25 |
| 4391286 | Hair conditioning and composition therefor | Du Y. Hsiung, Harold J. Nicholson | 1983-07-05 |
| 4214596 | Permanent wave system using ammonium bisulfite prewrap | Julius F. Kaplan, Norman L. Edelberg | 1980-07-29 |