Crain; Stephen F.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Crain; Stephen F..The latest application filed is for "continuous multi-component slurrying process at oil or gas well".
- Crain; Stephen F. - Duncan OK
| Patent | Date |
|---|---|
| Continuous multi-component slurrying process at oil or gas well Grant 5,570,743 - Padgett , et al. November 5, 1 | 1996-11-05 |
| Control method for a multi-component slurrying process Grant 5,452,954 - Handke , et al. September 26, 1 | 1995-09-26 |
| Process control system using remote computer and local site control computers for mixing a proppant with a fluid Grant 4,916,631 - Crain , et al. April 10, 1 | 1990-04-10 |
| Local area network data transfer system Grant 4,751,648 - Sears, III , et al. June 14, 1 | 1988-06-14 |
| Data acquisition module and method Grant 4,747,060 - Sears, III , et al. May 24, 1 | 1988-05-24 |
| Apparatus and method for mixing a plurality of substances Grant 4,538,221 - Crain , et al. August 27, 1 | 1985-08-27 |
| Apparatus and method for mixing a plurality of substances Grant 4,538,222 - Crain , et al. August 27, 1 | 1985-08-27 |
| Additive metering control system Grant 4,353,482 - Tomlinson , et al. October 12, 1 | 1982-10-12 |
| Controlled additive metering system Grant 4,265,266 - Kierbow , et al. May 5, 1 | 1981-05-05 |
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