Inventor · Chapel Hill, NC, US

David S. Ensor

28Patents
9h-index
20Co-inventors
75Inventor score

Filing activity: Jul 14, 1989 → Sep 25, 2020

Most-cited inventions

PatentTitleAreaCited byStatus
US7134857B2 Electrospinning of fibers using a rotatable spray head Emerging Cross-Sectional Technologies 56 Expired
US7789930B2 Particle filter system incorporating nanofibers Emerging Cross-Sectional Technologies 49 Active
US5229171A Apparatus and method for uniformly coating a substrate in an evacuable chamber Emerging Cross-Sectional Technologies 23 Expired
US8052932B2 Polymer nanofiber-based electronic nose Emerging Cross-Sectional Technologies 16 Active
US5374396A Syringe injection system for measuring non-volatile residue in solvents Emerging Cross-Sectional Technologies 15 Expired
US8652229B2 Particle filter system incorporating nanofibers Emerging Cross-Sectional Technologies 15 Active
US7592277B2 Nanofiber mats and production methods thereof Emerging Cross-Sectional Technologies 14 Active
US5439513A Device for focussing particles suspended in a gas stream Emerging Cross-Sectional Technologies 14 Expired
US5072626A Measurement of ultrafine particle size distributions Physics 12 Expired
US10345216B2 Systems, devices, and methods for flow control and sample monitoring control Physics 8 Active
US7297305B2 Electrospinning in a controlled gaseous environment Emerging Cross-Sectional Technologies 7 Expired
US7999455B2 Luminescent device including nanofibers and light stimulable particles disposed on a surface of or at least partially within the nanofibers Electricity 6 Active
US9988664B2 Fiber sampler for recovery of bioaerosols and particles Physics 4 Active
US10099165B2 Curved nanofiber products and applications thereof Textiles; Paper 4 Active
US7762801B2 Electrospray/electrospinning apparatus and method Textiles; Paper 3 Active
US9598282B2 Polymer nanofiber-based electronic nose Emerging Cross-Sectional Technologies 3 Active
US10208331B2 Fiber sampler for recovery of bioaerosols and particles Physics 2 Active
US8052407B2 Electrospinning in a controlled gaseous environment Emerging Cross-Sectional Technologies 2 Active
US10188973B2 Apparatus and method using an electric field for creating uniform nanofiber patterns on nonconductive materials to enhance filtration and for embedment of fibers into materials for other applications Performing Operations; Transporting 2 Active
US8847487B2 Luminescent device Electricity 2 Active
US10378042B2 Fiber sampler for recovery of bioaerosols and particles Chemistry; Metallurgy 1 Active
US8632721B2 Electrospinning in a controlled gaseous environment Emerging Cross-Sectional Technologies 1 Active
US8088324B2 Electrospray/electrospinning apparatus and method Textiles; Paper 1 Active
US10876145B2 Fiber sampler for recovery of bioaerosols and particles Physics 0 Active
US10767210B2 Fiber sampler for recovery of bioaerosols and particles Physics 0 Active

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