Flowdril Corporation
Kent, WA, US· latest recorded location
Flowdril Corporation is named on 4 US grants and 0 published applications in this corpus. Its most frequent classification is E21B (Earth or rock drilling).
- Granted patents
- 4
- Published applications
- 0
- Inventors
- 6
- Granted in 2026 so far
- 0
- Most recent grant
- 4 Aug 1998
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
By publication year.
Technology areas
Share of 4 documents
Recent patents
- Down hole pressure intensifier and drilling assembly and method4 Aug 1998US 5,787,998 A
- Fixed-cutter drill bit assembly and method21 Jan 1997US 5,595,252 A
- Method and apparatus for removing the inner conduit from a dual passage drill string8 Sep 1987US 4,691,790 A
- Method for combined jet and mechanical drilling25 Nov 1986US 4,624,327 A
No published applications.
Most cited
By later US patents
- Fixed-cutter drill bit assembly and method103US 5,595,252 A1997
- Method for combined jet and mechanical drilling49US 4,624,327 A1986
- Down hole pressure intensifier and drilling assembly and method18US 5,787,998 A1998
- Method and apparatus for removing the inner conduit from a dual passage drill string15US 4,691,790 A1987