Inventor
Chau-Ting Chang
Inventor
Hsinchu, TW
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C01Gprimary
C01GCompounds containing metals not covered by subclasses c01d or c01f21%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds21%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests21%
C22BProduction and refining of metals14%
C25CProcesses for the electrolytic production, recovery or refining of metals14%
H10NElectric solid-state devices not otherwise provided for7%
PatentTitleYear
5,147,848'Precipitation process for forming Bi-Pb-Sr-Ca-Cu-O superconductors by dissolving nitrate salts in acid and adding a solution of triethylamine and oxalic acid'19925,114,911'Homogeneous coprecipitation method for preparing YBaCuO superconducting powder'19924,895,832'Coprecipitation method for producing superconducting oxides of high homogeneity'19904,338,125'Method for the preparation of uranium compounds via electrolytic amalgamation of uranium ion directly from an aqueous solution'19824,004,987'Method for the preparation of rare and precious metals by electrolytical amalgamation using ion exchange membrane'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1982Patents assigned to INST NUCLEAR ENERGY RES (2)· patent assignee history
1977Based in Taiwan, TW· patent location history
1982Based in Hsin Chu, TW· patent location history
1990–1992Patents assigned to IND TECH RES INST (2)· patent assignee history
1990–1992Based in Hsinchu, TW· patent location history
1992Patents assigned to INDUSTRAIL TECHNOLOGY RESEARCH (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| IND TECH RES INST | 2 | 1990–1992 |
| INST NUCLEAR ENERGY RES | 2 | 1977–1982 |
| INDUSTRAIL TECHNOLOGY RESEARCH | 1 | 1992 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hsinchu, TW | 3 | 1990–1992 |
| Hsin Chu, TW | 1 | 1982 |
| Taiwan, TW | 1 | 1977 |