Ralph H. Echols
67Patents
27h-index
63Co-inventors
91Inventor score
Filing activity: May 20, 1985 → Oct 3, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5413180A | One trip backwash/sand control system with extendable washpipe isolation | Fixed Constructions | 161 | Expired |
| US7096945B2 | Sand control screen assembly and treatment method using the same | Fixed Constructions | 152 | Expired |
| US7055598B2 | Fluid flow control device and method for use of same | Fixed Constructions | 146 | Expired |
| US5375662A | Hydraulic setting sleeve | Fixed Constructions | 145 | Expired |
| US5803179A | Screened well drainage pipe structure with sealed, variable length labyrinth inlet flow control apparatus | Fixed Constructions | 139 | Expired |
| US5188182A | System containing expendible isolation valve with frangible sealing member, seat arrangement and method for use | Fixed Constructions | 134 | Expired |
| US6722427B2 | Wear-resistant, variable diameter expansion tool and expansion methods | Fixed Constructions | 124 | Expired |
| US6854522B2 | Annular isolators for expandable tubulars in wellbores | Fixed Constructions | 115 | Expired |
| US6899176B2 | Sand control screen assembly and treatment method using the same | Fixed Constructions | 107 | Expired |
| US6457518B1 | Expandable well screen | Fixed Constructions | 100 | Expired |
| US7252142B2 | Annular isolators for expandable tubulars in wellbores | Fixed Constructions | 76 | Expired |
| US6053250A | Gravel pack apparatus | Fixed Constructions | 74 | Expired |
| US6782948B2 | Remotely operated multi-zone packing system | Fixed Constructions | 72 | Expired |
| US6003607A | Wellbore equipment positioning apparatus and associated methods of completing wells | Fixed Constructions | 67 | Expired |
| US6367552B1 | Hydraulically metered travel joint | Fixed Constructions | 67 | Expired |
| US5857521A | Method of using a retrievable screen apparatus | Fixed Constructions | 65 | Expired |
| US6415509B1 | Methods of fabricating a thin-wall expandable well screen assembly | Emerging Cross-Sectional Technologies | 64 | Expired |
| US6540025B2 | Hydraulically metered travel joint method | Fixed Constructions | 62 | Expired |
| US6032735A | Gravel pack apparatus | Fixed Constructions | 59 | Expired |
| US6488082B2 | Remotely operated multi-zone packing system | Fixed Constructions | 59 | Expired |
| US7048048B2 | Expandable sand control screen and method for use of same | Fixed Constructions | 52 | Expired |
| US6530431B1 | Screen jacket assembly connection and methods of using same | Fixed Constructions | 40 | Expired |
| US7216706B2 | Annular isolators for tubulars in wellbores | Fixed Constructions | 37 | Expired |
| US6155342A | Proppant containment apparatus | Fixed Constructions | 35 | Expired |
| US6854521B2 | System and method for creating a fluid seal between production tubing and well casing | Fixed Constructions | 33 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.