Fineberg; Douglas H.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Fineberg; Douglas H..The latest application filed is for "plunger lift tool".
- Fineberg; Douglas H. - Bowie MD
- Fineberg; Douglas H. - Houston TX
- Fineberg; Douglas H. - Broken Arrow OK
| Patent | Date |
|---|---|
| Plunger lift tool Grant 4,984,969 - Fineberg January 15, 1 | 1991-01-15 |
| Apparatus for securing a measurement-while-drilling (MWD) instrument within a pipe Grant 4,681,160 - Fineberg July 21, 1 | 1987-07-21 |
| Downhole flapper valve Grant 4,531,587 - Fineberg July 30, 1 | 1985-07-30 |
| Equalizing valve for subterranean wells Grant 4,478,286 - Fineberg October 23, 1 | 1984-10-23 |
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