Inventor
Richard S. Allen
Inventor
Houston, TX, US
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling57%
G01FMeasuring volume, volume flow, mass flow or liquid level29%
G01NInvestigating or analysing materials by determining their chemical or physical properties14%
PatentTitleYear
4,727,489'Apparatus for analyzing the annulus effluent of a well'19884,576,036'Method and apparatus for determining quality and mass flow rate of flowing steam'19864,565,245'Completion for tar sand substrate'19864,508,172'Tar sand production using thermal stimulation'19854,501,325'Method for predicting workovers and shut-ins from analyzing the annulus effluent of a well'1985Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1985–1988Patents assigned to TEXACO INC (5)· patent assignee history
1985–1988Based in Houston, TX, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TEXACO INC | 5 | 1985–1988 |
Locations
| Location | Patents | Span |
|---|---|---|
| Houston, Texas, US | 5 | 1985–1988 |