Inventor · Colorado Springs, CO, US

Robert Duenckel

29Patents
9h-index
22Co-inventors
71Inventor score

Filing activity: Mar 22, 2005 → Aug 29, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US7721804B2 Proppants for gel clean-up Emerging Cross-Sectional Technologies 46 Active
US8883693B2 Proppant particles formed from slurry droplets and method of use Performing Operations; Transporting 32 Active
US7921910B2 Tagged propping agents and related methods Fixed Constructions 30 Expired
US7678723B2 Sintered spherical pellets Chemistry; Metallurgy 28 Active
US7825053B2 Sintered spherical pellets Chemistry; Metallurgy 28 Active
US8234072B2 Methods of identifying high neutron capture cross section doped proppant in induced subterranean formation fractures Physics 27 Active
US8865631B2 Proppant particles formed from slurry droplets and method of use Chemistry; Metallurgy 20 Active
US8100177B2 Method of logging a well using a thermal neutron absorbing material Physics 20 Active
US9670400B2 Proppant particles formed from slurry droplets and methods of use Emerging Cross-Sectional Technologies 13 Active
US8214151B2 Methods of identifying high neutron capture cross section doped proppant in induced subterranean formation fractures Physics 8 Active
US9175210B2 Proppant particles formed from slurry droplets and method of use Performing Operations; Transporting 6 Active
US9261620B2 Apparatus, method and system for mapping fracture features in hydraulically fractured strata using functional proppant properties Physics 6 Active
US8648309B2 Spectral identification of proppant in subterranean fracture zones Physics 6 Active
US10077395B2 Proppant particles formed from slurry droplets and methods of use Emerging Cross-Sectional Technologies 4 Active
US10316242B2 Composition and method for hydraulic fracturing and evaluation and diagnostics of hydraulic fractures using infused porous ceramic proppant Chemistry; Metallurgy 4 Active
US9038715B2 Use of PNC tools to determine the depth and relative location of proppant in fractures and the near borehole region Fixed Constructions 3 Active
US9951267B2 Infused and coated proppant containing chemical treatment agents and methods of using same Chemistry; Metallurgy 2 Active
US11124697B2 Infused and coated proppant containing chemical treatment agents and methods of using same Chemistry; Metallurgy 2 Active
US10161237B2 Identification of proppant in subterranean fracture zones using a ratio of capture to inelastic gamma rays Fixed Constructions 1 Active
US11512025B2 Proppant particles formed from slurry droplets and methods of use Emerging Cross-Sectional Technologies 1 Active
US11286418B2 Composition and method for hydraulic fracturing and evaluation and diagnostics of hydraulic fractures using infused porous ceramic proppant Chemistry; Metallurgy 1 Active
US11078771B2 Identification of cement in subterranean borehole regions using a ratio of capture to inelastic gamma rays Fixed Constructions 1 Active
US10118863B2 Proppant particles formed from slurry droplets and methods of use Emerging Cross-Sectional Technologies 1 Active
US12037545B2 Composition and method for hydraulic fracturing and evaluation and diagnostics of hydraulic fractures using infused porous ceramic proppant Chemistry; Metallurgy 0 Active
US11739260B2 Infused and coated proppant containing chemical treatment agents and methods of using same Chemistry; Metallurgy 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.