Erich Richartz
Inventor
Stats
- 4 US patents issued
- 4 US Applications filed
- most recent filing
This is official USPTO record data
Details
- 4 US Patents Issued
- 4 US Applications Filed
- 28 Total Citation Count
- Jul 22, 1999 Most Recent Filing
- Oct 25, 1988 Earliest Filing
Work History
| Patent Owner | Applications Filed | Year |
|---|---|---|
| AICHER, MAX | 1
| 1989
|
| DWK Drahtwerk Köln GmbH | 1
| 1999
|
| DYWIDAG-SYSTEMS INTERNATIONAL GMBH | 1
1 1 | 1988
1996 1999 |
| Bekaert-CMTM GmbH | 1
| 1999
|
| DYCKERHOFF & WIDMANN AKTIENGESELLSCHAFT | 1
| 1988
|
Inventor Addresses
| Address | Duration |
|---|---|
| Grafelfing, DE | Jan 13, 98 - Jan 13, 98 |
| Grafing B. Munich, DE | Sep 04, 90 - Sep 04, 90 |
| Grafing, DE | Nov 27, 01 - Nov 27, 01 |
| Peine, DE | May 08, 90 - May 08, 90 |
Technology Profile
| Technology | Matters | |
|---|---|---|
| B21H: | MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS | 1 |
| C21D: | MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS | 1 |
| E01D: | BRIDGES | 1 |
Patents / Publication
| Patents / Publication # | Year of Publication / Issued | Title | Citations |
|---|---|---|---|
| 6322281 | 2001 | Corrosion-protected tension member of steel | 5 |
| 5707181 | 1998 | Method of producing an intended breaking point in a tension member for a soil anchor | 5 |
| 4953379 | 1990 | Hot-rolled steel bar with helically extending ribs, method of and apparatus for producing the steel bar | 9 |
| 4923528 | 1990 | Method for manufacturing rolled steel products | 0 |
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