Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4326065 | Oxadiazole ultraviolet stabilizers and their use in organic compositions | Charles A. Kelly | 1982-04-20 |
| 4308194 | Heterocyclic benzoate ultraviolet stabilizers and their use in organic compositions | Charles A. Kelly | 1981-12-29 |
| 4281129 | Piperidinyl hydrogen 2-hydroxyalkyl phosphates and metal salts thereof | Richard H. S. Wang | 1981-07-28 |
| 4271307 | Bichromophoric benzotriazole-benzoxazole ultraviolet stabilizers and their use in organic compositions | Charles A. Kelly, James Martin | 1981-06-02 |
| 4251433 | Heterocyclic ester, ultraviolet stabilizers and their use in organic compositions | Charles A. Kelly | 1981-02-17 |
| 4236013 | Benzotriazole ultraviolet stabilizers and their use in organic compositions | Charles A. Kelly | 1980-11-25 |
| 4235999 | Bichromophoric benzotriazole-styrene ester ultraviolet stabilizers and their use in organic compositions | Charles A. Kelly, James Martin | 1980-11-25 |
| 4216137 | Thermally stabilized polyolefin compositions | Richard H. S. Wang | 1980-08-05 |
| 4194989 | Piperidinyl hydrogen 2-hydroxyalkyl phosphates and metal salts thereof which compounds are useful as ultraviolet stabilizers for organic compositions | Richard H. S. Wang | 1980-03-25 |
| 4192794 | Titanium dioxide-pigmented polymer compositions having improved visible and ultraviolet light stability | Richard H. S. Wang, James C. Ownby | 1980-03-11 |
| 4187229 | Bis-benzotriazole compounds | Charles A. Kelly, James Martin | 1980-02-05 |
| 4187213 | Multiheterocyclic ultraviolet stabilizers and their use in organic compositions | James C. Ownby, Richard H. S. Wang | 1980-02-05 |
| 4182703 | Biheterocyclic ultraviolet stabilizers and their use in organic compositions | James C. Ownby, Richard H. S. Wang | 1980-01-08 |