Michael G. Crowder
15Patents
13h-index
7Co-inventors
60Inventor score
Filing activity: Jul 22, 2004 → Nov 14, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7322412B2 | Casing shoes and methods of reverse-circulation cementing of casing | Fixed Constructions | 173 | Expired |
| US7451817B2 | Methods of using casing strings in subterranean cementing operations | Emerging Cross-Sectional Technologies | 90 | Active |
| US7303014B2 | Casing strings and methods of using such strings in subterranean cementing operations | Emerging Cross-Sectional Technologies | 82 | Expired |
| US7503399B2 | Casing shoes and methods of reverse-circulation cementing of casing | Fixed Constructions | 69 | Active |
| US7621336B2 | Casing shoes and methods of reverse-circulation cementing of casing | Fixed Constructions | 49 | Active |
| US7303008B2 | Methods and systems for reverse-circulation cementing in subterranean formations | Fixed Constructions | 35 | Expired |
| US7404440B2 | Methods of using casing strings in subterranean cementing operations | Emerging Cross-Sectional Technologies | 31 | Active |
| US7252147B2 | Cementing methods and systems for initiating fluid flow with reduced pumping pressure | Fixed Constructions | 28 | Expired |
| US7409991B2 | Methods of using casing strings in subterranean cementing operations | Emerging Cross-Sectional Technologies | 25 | Active |
| US7290611B2 | Methods and systems for cementing wells that lack surface casing | Fixed Constructions | 24 | Expired |
| US7938186B1 | Casing shoes and methods of reverse-circulation cementing of casing | Fixed Constructions | 20 | Active |
| US7284608B2 | Casing strings and methods of using such strings in subterranean cementing operations | Emerging Cross-Sectional Technologies | 20 | Expired |
| US7621337B2 | Casing shoes and methods of reverse-circulation cementing of casing | Fixed Constructions | 14 | Active |
| US7389815B2 | Methods for reverse-circulation cementing in subterranean formations | Fixed Constructions | 7 | Active |
| US7401646B2 | Methods for reverse-circulation cementing in subterranean formations | Fixed Constructions | 5 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.