Bernhard Lungwitz
19Patents
6h-index
63Co-inventors
69Inventor score
Filing activity: Apr 4, 2001 → Aug 5, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6881709B2 | Viscosity reduction of viscoelastic surfactant based fluids | Emerging Cross-Sectional Technologies | 130 | Expired |
| US7350572B2 | Methods for controlling fluid loss | Chemistry; Metallurgy | 45 | Expired |
| US6762154B2 | Viscoelastic surfactant fluids stable at high brine concentrations | Emerging Cross-Sectional Technologies | 39 | Expired |
| US10421897B2 | Method of treating a well with the formation of proppant structures (variants) | Fixed Constructions | 22 | Active |
| US9034802B2 | Friction reduction fluids | Chemistry; Metallurgy | 16 | Active |
| US7299870B2 | Self diverting matrix acid | Emerging Cross-Sectional Technologies | 12 | Expired |
| US9896618B2 | Method of making rod-shaped particles for use as proppant and anti-flowback additive | Chemistry; Metallurgy | 4 | Active |
| US9932519B2 | Method of making particles having a ridge portion for use as proppant | Emerging Cross-Sectional Technologies | 2 | Active |
| US10808497B2 | Methods of zonal isolation and treatment diversion | Chemistry; Metallurgy | 2 | Active |
| US7776796B2 | Methods of treating wellbores with recyclable fluids | Emerging Cross-Sectional Technologies | 2 | Active |
| US10369724B2 | Method of making spheroidal particles | Performing Operations; Transporting | 1 | Active |
| US9556703B2 | Swellable elastomer and its use in acidizing or matrix stimulation | Fixed Constructions | 1 | Active |
| US11427753B2 | Method of making rod-shaped particles for use as proppant and anti-flowback additive | Chemistry; Metallurgy | 1 | Active |
| US10391679B2 | Perforated membranes and methods of making the same | Performing Operations; Transporting | 0 | Active |
| US11319476B2 | Cellulose nanofibers in extended cement systems | Emerging Cross-Sectional Technologies | 0 | Active |
| US10557079B2 | Method of making rod-shaped particles for use as proppant and anti-flowback additive | Chemistry; Metallurgy | 0 | Active |
| US11008844B2 | Method for hydraulic fracturing (variants) | Chemistry; Metallurgy | 0 | Active |
| US9611716B2 | Compositions and methods for reducing fluid loss | Fixed Constructions | 0 | Active |
| US10040985B2 | Compositons and methods for curing lost circulation | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.