Werner Kannchen
Inventor
Stats
- 3 US patents issued
- 3 US Applications filed
- most recent filing
This is official USPTO record data
Details
- 3 US Patents Issued
- 3 US Applications Filed
- 38 Total Citation Count
- Nov 6, 1987 Most Recent Filing
- Dec 5, 1980 Earliest Filing
Work History
| Patent Owner | Applications Filed | Year |
|---|---|---|
| KERR-MCGEE PIGMENTS GMBH & CO. KG | 1
| 1980
|
| DEUTSCHE SOLAR GMBH | 2
| 1987
|
Inventor Addresses
| Address | Duration |
|---|---|
| Duisburg, DE | Mar 23, 82 - Jun 06, 89 |
Technology Profile
| Technology | Matters | |
|---|---|---|
| C01B: | NON-METALLIC ELEMENTS; COMPOUNDS THEREOF | 1 |
| C01G: | COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F | 1 |
| C22C: | ALLOYS | 1 |
Patents / Publication
| Patents / Publication # | Year of Publication / Issued | Title | Citations |
|---|---|---|---|
| 4837376 | 1989 | Process for refining silicon and silicon purified thereby | 18 |
| 4755220 | 1988 | Materials resistant to metal and salt melts, their production and their use | 6 |
| 4321237 | 1982 | Treating hydrolysis residues from preparation of titanium dioxide | 2 |
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