James E. Griffith
46Patents
29h-index
28Co-inventors
81Inventor score
Filing activity: Nov 21, 1994 → Nov 14, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5588489A | Lightweight well cement compositions and methods | Chemistry; Metallurgy | 183 | Expired |
| US6328106A | Sealing subterranean zones | Chemistry; Metallurgy | 175 | Expired |
| US7322412B2 | Casing shoes and methods of reverse-circulation cementing of casing | Fixed Constructions | 173 | Expired |
| US6138759A | Settable spotting fluid compositions and methods | Emerging Cross-Sectional Technologies | 151 | Expired |
| US5716910A | Foamable drilling fluid and methods of use in well drilling operations | Chemistry; Metallurgy | 139 | Expired |
| US6448206B1 | Sealing subterranean zones | Chemistry; Metallurgy | 132 | Expired |
| US6315042A | Oil-based settable spotting fluid | Emerging Cross-Sectional Technologies | 124 | Expired |
| US5851960A | Method of performing well drilling operations with a foamable drilling fluid | Chemistry; Metallurgy | 120 | Expired |
| US6524384B2 | Oil-based settable spotting fluid | Emerging Cross-Sectional Technologies | 120 | Expired |
| US6668929B2 | Methods and oil-based settable spotting fluid compositions for cementing wells | Emerging Cross-Sectional Technologies | 115 | Expired |
| US6666268B2 | Methods and oil-based settable drilling fluid compositions for drilling and cementing wells | Emerging Cross-Sectional Technologies | 114 | Expired |
| US6401817B1 | Sealing subterranean zones | Chemistry; Metallurgy | 112 | Expired |
| US6715553B2 | Methods of generating gas in well fluids | Chemistry; Metallurgy | 110 | Expired |
| US6716282B2 | Methods and oil-based settable spotting fluid compositions for cementing wells | Emerging Cross-Sectional Technologies | 109 | Expired |
| US6503870B2 | Sealing subterranean zones | Chemistry; Metallurgy | 93 | Expired |
| US5484019A | Method for cementing in a formation subject to water influx | Chemistry; Metallurgy | 90 | 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 |
| US5909774A | Synthetic oil-water emulsion drill-in fluid cleanup methods | Emerging Cross-Sectional Technologies | 76 | Expired |
| US5571318A | Well cementing methods and compositions for use in cold environments | Emerging Cross-Sectional Technologies | 70 | Expired |
| US5711801A | Cement compositions | Chemistry; Metallurgy | 70 | Expired |
| US7503399B2 | Casing shoes and methods of reverse-circulation cementing of casing | Fixed Constructions | 69 | Active |
| US5696059A | Methods of preventing well cement stress failure | Chemistry; Metallurgy | 67 | Expired |
| US6668927B1 | Well completion foamed spacer fluids and methods | Emerging Cross-Sectional Technologies | 66 | Expired |
| US6619399B1 | Foamed compositions and methods of use in subterranean zones | Emerging Cross-Sectional Technologies | 50 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.