F17B 1/18
Bell-shaped
Official title: bell-shaped
F17B1/18 (Bell-shaped) appears on 3 US grants and 0 published applications in this corpus.
Search patents in F17B- Granted patents
- 3
- Published applications
- 0
- Assignees
- 2
- Inventors
- 3
- Latest grant
- 13 Jun 1995
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Sludge digesters with separate liquid chambers to buoy ballast members13 Jun 1995US 5,423,895 ABaker Hughes Incorporated
- Sludge digester24 Aug 1993US 5,238,844 ABaker Hughes Incorporated
- Sludge digesters with separate liquid chambers to buoy ballast members3 Mar 1992US 5,092,482 AEnvirotech Corporation
No published applications in this class yet.
Most cited
By later US patents