Wear resistant tubular connection
US7219727B2 · kind B2 · utility
23Cited by
18References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2002 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | Jul 18, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A wear resistant casing connection including a wear resistant portion on its exterior surface is taught. A casing connection having a controlled bend angle is also taught.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.