Donald Mike Johnson
14Patents
4h-index
11Co-inventors
57Inventor score
Filing activity: Jun 25, 1993 → Mar 26, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5452749A | Corrosion inhibitor and sealable thread protector end cap for tubular goods | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5352383A | Corrosion inhibitor and sealable thread protector end cap for tubular goods | Emerging Cross-Sectional Technologies | 9 | Expired |
| US7985938B2 | Method of sorting used tubular goods prior to reclaiming or reconditioning | Performing Operations; Transporting | 5 | Active |
| US10195699B2 | Sucker rod | Emerging Cross-Sectional Technologies | 4 | Active |
| US9840893B2 | Inspection methods for reprocessing non-metallic oilfield tools | Fixed Constructions | 4 | Active |
| US9278412B2 | Sucker rod | Emerging Cross-Sectional Technologies | 3 | Active |
| US10508522B2 | Automatic sucker rod spacing device and methods of using same | Fixed Constructions | 2 | Active |
| US11168549B2 | Automated sucker rod spacing device and associated methods | Fixed Constructions | 1 | Active |
| US11199053B2 | Sucker rod with adhesive-attached end piece | Fixed Constructions | 1 | Active |
| US10563773B2 | Fluid system coupling with internal valves | Emerging Cross-Sectional Technologies | 1 | Active |
| US12421807B2 | Connection assembly and method to assemble sucker rod | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10781666B2 | Inspection methods for reprocessing non-metallic oilfield tools | Fixed Constructions | 0 | Active |
| US9193013B2 | Methods and systems for assembly of fiberglass reinforced sucker rods | Emerging Cross-Sectional Technologies | 0 | Active |
| US8721815B2 | Methods and systems for assembly of fiberglass reinforced sucker rods | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.