Thomas E. Allen
36Patents
16h-index
24Co-inventors
81Inventor score
Filing activity: Jun 15, 1981 → Apr 26, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5426137A | Method for continuously mixing fluids | Emerging Cross-Sectional Technologies | 491 | Expired |
| US5114239A | Mixing apparatus and method | Performing Operations; Transporting | 105 | Expired |
| US5190374A | Method and apparatus for continuously mixing well treatment fluids | Fixed Constructions | 93 | Expired |
| US5571281A | Automatic cement mixing and density simulator and control system and equipment for oil well cementing | Performing Operations; Transporting | 78 | Expired |
| US5382411A | Apparatus and method for continuously mixing fluids | Performing Operations; Transporting | 70 | Expired |
| US5829103A | Pencil holder for soft baseball type hats | Emerging Cross-Sectional Technologies | 60 | Expired |
| US5103908A | Method for cementing a well | Performing Operations; Transporting | 50 | Expired |
| US4956141A | Molding process utilizing a mold release membrane | Performing Operations; Transporting | 43 | Expired |
| US5046855A | Mixing apparatus | Emerging Cross-Sectional Technologies | 39 | Expired |
| US6749330B2 | Cement mixing system for oil well cementing | Performing Operations; Transporting | 28 | Expired |
| US4429188A | Telephone call screener | Electricity | 27 | Expired |
| US6070906A | Wheeled ski and equipment carrying device | Human Necessities | 18 | Expired |
| US5355951A | Method of evaluating oil or gas well fluid process | Fixed Constructions | 18 | Expired |
| US6802638B2 | Automatically adjusting annular jet mixer | Performing Operations; Transporting | 18 | Expired |
| US7581872B2 | Gel mixing system | Performing Operations; Transporting | 17 | Active |
| US7029165B2 | Automatically adjusting annular jet mixer | Performing Operations; Transporting | 16 | Expired |
| US5393224A | Ignitor assembly for power burner furnace | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US7419296B2 | Gel mixing system | Performing Operations; Transporting | 11 | Active |
| US5174320A | Bulk cement metering device | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4751910A | Flue gas/combustion air heat exchanger | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US7811064B2 | Variable displacement reciprocating pump | Emerging Cross-Sectional Technologies | 8 | Active |
| US4979829A | Cement mixing with vibrator | Performing Operations; Transporting | 8 | Expired |
| US7434473B1 | Flow through pressure transducer | Physics | 8 | Active |
| US5029645A | Cement mixing with vibrator | Performing Operations; Transporting | 7 | Expired |
| US5920383A | Microscopic digital imaging strain gauge | Physics | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.