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David Spence — 11 Patents

PCPrecision Combustion: 11 patents #9 of 58Top 20%
Honda Motor Co.: 2 patents #8,527 of 21,052Top 45%
Beacon Falls, CT: #5 of 60 inventorsTop 9%
Connecticut: #4,146 of 34,797 inventorsTop 15%
Overall (All Time): #435,149 of 4,157,543Top 15%
11 Patents All Time
David Spence has been granted 11 US patents while listed as an inventor at Precision Combustion. The first was granted in 2011 and the most recent in December 2020. David Spence ranks #435,149 of 4,157,543 US inventors in our database (top 10.5%). Patent records list David Spence in Beacon Falls, CT, US.

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10876472 Spark-ignited internal combustion engine modified for multi-fuel operation Subir Roychoudhury, Richard Mastanduno, Bruce Crowder, Curtis Morgan 2020-12-29
10738996 Apparatus and method for operating a gas-fired burner on liquid fuels Subir Roychoudhury, Richard Mastanduno, Bruce Crowder, Francesco Macri, Julian David Prada Bernal 2020-08-11
10060344 Spark-ignited internal combustion engine modified for multi-fuel operation Subir Roychoudhury, Richard Mastanduno, Bruce Crowder, Curtis Morgan 2018-08-28
10001278 Apparatus and method for operating a gas-fired burner on liquid fuels Subir Roychoudhury, Richard Mastanduno, Bruce Crowder, Francesco Macri, Julian David Prada Bernal 2018-06-19
9371991 Apparatus and method for vaporizing a liquid fuel Richard Mastanduno, Subir Roychoudhury, Bruce Crowder 2016-06-21
9102531 Reactor control method Subir Roychoudhury, Joel DesJardins, Richard Mastanduno, Dennis E. Walsh, William C. Pfefferle 2015-08-11
8784515 In-situ coke removal Subir Roychoudhury, Richard Mastanduno, Jun Iwamoto, Go Motohashi 2014-07-22 $316,000
8439990 Reactor flow control apparatus Subir Roychoudhury, Richard Mastanduno, Dennis E. Walsh, Jun Iwamoto, Go Motohashi +2 more 2013-05-14 $411,000
8387380 Catalytic burner apparatus for Stirling Engine Subir Roychoudhury, Bruce Crowder, Richard Mastanduno, Jonathan Dwight Berry 2013-03-05
8337757 Reactor control method Subir Roychoudhury, Joel DesJardins, Richard Mastanduno, Dennis E. Walsh, William C. Pfefferle 2012-12-25
7913484 Catalytic burner apparatus for stirling engine Subir Roychoudhury, Bruce Crowder, Jonathan Dwight Berry, Richard Mastanduno 2011-03-29

Nearby-Ranked Inventors

Ya-Ching Chang11
Hermann Lubbert11
Alexander WAITE11
Mehrad Mehr11
Matthew J. Purdey11
Nishtha Madaan11
Ian C. Richards11
Chad Huffman11
Lifeng Fan11