Pressure control assembly
US11867017B2 · kind B2 · utility
0Cited by
20References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2023 |
| Grant date | Jan 9, 2024 |
| Priority date | — |
| Expiry date | Mar 10, 2043 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An embodiment includes a greaseless multi-level pressure control assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.