Assignee
VANOIL EQUIPMENT INC
CA·4 granted patents·106 citations·filing 1997–2003
Top patents by PatentIndex Score
4 records- 0174US5944319AMethod of forming a metal to metal seal between two confronting faces of pressure containing bodies and a metal to metal sealVANOIL EQUIPMENT INC·Filed 1997·Granted Aug 31, 1999·59 cites·4 claims
- 0254US6439302B1Stripper packerVANOIL EQUIPMENT INC·Filed 2000·Granted Aug 27, 2002·22 cites·5 claims
- 0349US6877712B2Method of sealing pressure within a blowout preventer and a blowout preventerVANOIL EQUIPMENT INC·Filed 2003·Granted Apr 12, 2005·17 cites·7 claims
- 0428US5960876AWellhead equipment that use polymer sealing elements to seal off well pressureVANOIL EQUIPMENT INC·Filed 1998·Granted Oct 5, 1999·8 cites·2 claims
Join the waitlist — get patent alerts
Get an alert when VANOIL EQUIPMENT INC files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →