Patent 11041358 was granted and assigned to Halliburton on June, 2021 by the United States Patent and Trademark Office.
Oilfield tools having a metal-to-metal seal formed between a first metal surface and a second metal surface, wherein at least one of the first and second metal surfaces are at least partially coated by chemical bonding or physical deposition of a coating material that is more durable and has a lower coefficient of friction than either or both of the first and/or second metal surfaces to which the coating material is applied.