Walfried David
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
- 28 Total Citation Count
- Aug 5, 1985 Most Recent Filing
- Dec 6, 1984 Earliest Filing
Work History
| Patent Owner | Applications Filed | Year |
|---|---|---|
| Bopp & Reuther GmbH | 1
2 | 1984
1985 |
Inventor Addresses
| Address | Duration |
|---|---|
| Maxdorf, DE | Aug 26, 86 - Oct 13, 87 |
Technology Profile
| Technology | Matters | |
|---|---|---|
| F16K: | VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING | 3 |
Patents / Publication
| Patents / Publication # | Year of Publication / Issued | Title | Citations |
|---|---|---|---|
| 4699359 | 1987 | Shut-off valve | 9 |
| 4629160 | 1986 | Shutoff wedge for shutoff valve | 10 |
| 4607821 | 1986 | Shutoff valve | 5 |
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