Michael A. Freeman
20Patents
7h-index
17Co-inventors
66Inventor score
Filing activity: Mar 13, 1987 → Apr 14, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6818594B1 | Method for the triggered release of polymer-degrading agents for oil field use | Emerging Cross-Sectional Technologies | 110 | Expired |
| US4786046A | Handling of sheet materials | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4793891A | Application of labels to articles | Emerging Cross-Sectional Technologies | 13 | Expired |
| US7727316B2 | Hydrogen sulfide treatment system | Chemistry; Metallurgy | 11 | Active |
| US7704299B2 | Methods of hydrogen sulfide treatment | Chemistry; Metallurgy | 11 | Active |
| US4798648A | Article feeding devices for labellers | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6499546B1 | Buffered well fluids | Fixed Constructions | 8 | Expired |
| US7691259B2 | Separation of tar from sand | Chemistry; Metallurgy | 7 | Active |
| US8066870B2 | Separation of tar from sand | Chemistry; Metallurgy | 4 | Active |
| US6260666A | Wheel chock device | Performing Operations; Transporting | 4 | Expired |
| US8427640B2 | Method and apparatus for measuring particle size distribution in drilling fluid | Physics | 3 | Active |
| US8017563B2 | Diverting compositions, fluid loss control pills, and breakers thereof | Chemistry; Metallurgy | 3 | Active |
| US7753990B2 | Aerated degasser | Performing Operations; Transporting | 3 | Active |
| US8186432B2 | Well logging fluid for ultrasonic cement bond logging | Physics | 2 | Active |
| US9007580B2 | Method and apparatus for measuring particle size distribution in drilling fluid | Physics | 2 | Active |
| US7716968B2 | Apparatus and method for testing reservoir drilling fluids for drilling unconsolidated tar sands | Fixed Constructions | 0 | Active |
| US9140075B2 | Mechanically modified filter cake | Fixed Constructions | 0 | Active |
| US8156791B2 | Apparatus and method for testing reservoir drilling fluids for drilling unconsolidated tar sands | Fixed Constructions | 0 | Active |
| US5097937A | Apparatus and method for raising can handles | Performing Operations; Transporting | 0 | Expired |
| US10228315B2 | Method and apparatus for measuring particle size distribution in drilling fluid | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.