04655289 is referenced by 52 patents and cites 4 patents.

A control system for use on fluid conducting pipe strings in earth boreholes to permit cycling of fluid flow between preselected flow rates to change conditions downhole as a result of surface exercise of fluid flow controls. A resulting change of state downhole is indicated by a change in fluid flow related pressure detectable at the surface.

Title
Remote control selector valve
Application Number
6/784262
Publication Number
4655289
Application Date
October 4, 1985
Publication Date
April 7, 1987
Inventor
William N Schoeffler
Lafayette
LA, US
Agent
John D Jeter
Assignee
Petro Design
LA, US
IPC
E21B 34/10
View Original Source