Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6767728 | Composition for enzymatic deinking of waste paper | Jan-Liang YANG, Jiahua Ma, J. Michael Pierce | 2004-07-27 |
| 6426200 | Methods for enzymatic deinking of waste paper | Jan-Liang YANG, Jianhua Ma, J. Michael Pierce | 2002-07-30 |
| 4935366 | Method of obtaining cellulase deficient strains of white-rot fungi | Susanna C. Johnsrud | 1990-06-19 |
| 4633552 | Tool handle with eccentric tool gripping assembly | — | 1987-01-06 |
| 4252230 | Container-advancing apparatus | — | 1981-02-24 |