Lance E. Brothers
113Patents
42h-index
93Co-inventors
93Inventor score
Filing activity: Apr 29, 1983 → Jan 8, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6488763B2 | Light weight high temperature well cement compositions and methods | Emerging Cross-Sectional Technologies | 273 | Expired |
| US5479986A | Temporary plug system | Fixed Constructions | 262 | Expired |
| US4676317A | Method of reducing fluid loss in cement compositions which may contain substantial salt concentrations | Chemistry; Metallurgy | 203 | Expired |
| US6143069A | Light weight high temperature well cement compositions and methods | Emerging Cross-Sectional Technologies | 187 | Expired |
| US5900053A | Light weight high temperature well cement compositions and methods | Emerging Cross-Sectional Technologies | 183 | Expired |
| US6220350A | High strength water soluble plug | Fixed Constructions | 165 | Expired |
| US6332921A | Cement compositions and methods for high temperature wells containing carbon dioxide | Emerging Cross-Sectional Technologies | 152 | Expired |
| US5765641A | Bidirectional disappearing plug | Fixed Constructions | 147 | Expired |
| US5472051A | Low temperature set retarded well cement compositions and methods | Chemistry; Metallurgy | 145 | Expired |
| US4941536A | Set retarded cement compositions and methods for well cementing | Chemistry; Metallurgy | 142 | Expired |
| US6904971B2 | Cement compositions with improved corrosion resistance and methods of cementing in subterranean formations | Emerging Cross-Sectional Technologies | 138 | Expired |
| US7066284B2 | Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell | Fixed Constructions | 137 | Expired |
| US6689208B1 | Lightweight cement compositions and methods of cementing in subterranean formations | Emerging Cross-Sectional Technologies | 136 | Expired |
| US5049288A | Set retarded cement compositions and methods for well cementing | Emerging Cross-Sectional Technologies | 136 | Expired |
| US4703801A | Method of reducing fluid loss in cement compositions which may contain substantial salt concentrations | Chemistry; Metallurgy | 118 | Expired |
| US6908508B2 | Settable fluids and methods for use in subterranean formations | Emerging Cross-Sectional Technologies | 118 | Expired |
| US6026903A | Bidirectional disappearing plug | Fixed Constructions | 117 | Expired |
| US6561273B2 | Oil based compositions and method for temporarily sealing subterranean zones | Emerging Cross-Sectional Technologies | 114 | Expired |
| US6244343A | Cementing in deep water offshore wells | Chemistry; Metallurgy | 108 | Expired |
| US6796378B2 | Methods of cementing high temperature wells and cement compositions therefor | Emerging Cross-Sectional Technologies | 108 | Expired |
| US6846357B2 | Methods of cementing high temperature wells and cement compositions therefor | Emerging Cross-Sectional Technologies | 107 | Expired |
| US6887833B2 | Oil based compositions and method for temporarily sealing subterranean zones | Emerging Cross-Sectional Technologies | 98 | Expired |
| US6722433B2 | Methods of sealing expandable pipe in well bores and sealing compositions | Chemistry; Metallurgy | 92 | Expired |
| US7225879B2 | Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell | Fixed Constructions | 91 | Expired |
| US6835243B2 | Cementing in deep water offshore wells | Chemistry; Metallurgy | 86 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.