Willi Keul
Inventor
Stats
- 2 US patents issued
- 2 US Applications filed
- most recent filing
This is official USPTO record data
Details
- 2 US Patents Issued
- 2 US Applications Filed
- 16 Total Citation Count
- Nov 9, 1999 Most Recent Filing
- May 8, 1986 Earliest Filing
Work History
| Patent Owner | Applications Filed | Year |
|---|---|---|
| Rheinische Braunkohlenwerke AG | 1
| 1986
|
| Meyer Rohr & Schacht GmbH | 1
| 1999
|
| RHEINBRAUN AKTIENGESELLSCHAFT, A CORP. OF GERMANY | 1
| 1999
|
Inventor Addresses
| Address | Duration |
|---|---|
| Kerpen, DE | Mar 05, 02 - Mar 05, 02 |
| Kerpen-Bruggen, DE | Jan 05, 88 - Jan 05, 88 |
Technology Profile
| Technology | Matters | |
|---|---|---|
| E03B: | INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER | 1 |
| E21B: | EARTH OR ROCK DRILLING | 1 |
| F16L: | PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL | 1 |
Patents / Publication
| Patents / Publication # | Year of Publication / Issued | Title | Citations |
|---|---|---|---|
| 6352108 | 2002 | Well pipe | 3 |
| 4717182 | 1988 | Plastic coupling sleeve for pipes | 8 |
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