Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4376868 | Alkoxylation of cresylic acids | Kang Yang, Paul H. Washecheck | 1983-03-15 | |
| 4329515 | Catalyst removal from alcohol alkoxylates | Kang Yang, Paul H. Washecheck | 1982-05-11 | |
| 4306093 | Strontium catalyzed alkoxylations | Kang Yang, Paul H. Washecheck | 1981-12-15 | |
| 4302613 | Inorganic catalyst for alkoxylation of alcohols | Kang Yang, Paul H. Washecheck | 1981-11-24 | |
| 4223164 | Ethoxylation with strontium bases | Kang Yang, Paul H. Washecheck | 1980-09-16 | $30,378,000 |
| 4210764 | Barium oxide/cresylic acid catalyzed ethoxylation | Kang Yang, Paul H. Washecheck | 1980-07-01 | $30,413,000 |