DK

DOUGLAS W. KARKOW

CC Clearsign Combustion: 30 patents #4 of 24Top 20%
CT Clearsign Technologies: 18 patents #2 of 20Top 10%
📍 Mount Vernon, IA: #2 of 30 inventorsTop 7%
🗺 Iowa: #117 of 15,303 inventorsTop 1%
Overall (All Time): #57,786 of 4,157,543Top 2%
48
Patents All Time

Issued Patents All Time

Showing 26–48 of 48 patents

Patent #TitleCo-InventorsDate
10337729 Fuel combustion system with a perforated reaction holder Robert E. Breidenthal, JOSEPH COLANNINO, Christopher A. Wiklof 2019-07-02
10240788 Combustion system with flame location actuation JOSEPH COLANNINO, Igor A. Krichtafovitch, Robert E. Breidenthal, Christopher A. Wiklof 2019-03-26
10190767 Electrically controlled combustion fluid flow Christopher A. Wiklof 2019-01-29
10156356 Flame visualization control for a burner including a perforated flame holder JOSEPH COLANNINO, Robert A. Geiger, Christopher A. Wiklof 2018-12-18
10139131 Fluid heater with perforated flame holder, and method of operation JOSEPH COLANNINO, Christopher A. Wiklof 2018-11-27
10125979 Combustion system and method for electrically assisted start-up JOSEPH COLANNINO 2018-11-13
10125983 High output porous tile burner JOSEPH COLANNINO, Christopher A. Wiklof 2018-11-13
10119704 Burner system including a non-planar perforated flame holder JOSEPH COLANNINO, JAMES K. DANSIE, Christopher A. Wiklof 2018-11-06
10088153 Radiant wall burner including perforated flame holders JOSEPH COLANNINO, Christopher A. Wiklof 2018-10-02
10088154 Down-fired burner with a perforated flame holder JOSEPH COLANNINO, Igor A. Krichtafovitch, Christopher A. Wiklof 2018-10-02
10077899 Startup method and mechanism for a burner having a perforated flame holder JOSEPH COLANNINO, Igor A. Krichtafovitch, Christopher A. Wiklof 2018-09-18
10066835 Combustion system with flame location actuation JOSEPH COLANNINO, Igor A. Krichtafovitch, Robert E. Breidenthal, Christopher A. Wiklof 2018-09-04
10006715 Tunnel burner including a perforated flame holder JOSEPH COLANNINO, Christopher A. Wiklof 2018-06-26
9885496 Fluid heater with perforated flame holder JOSEPH COLANNINO, Christopher A. Wiklof 2018-02-06
9857076 Perforated flame holder and burner including a perforated flame holder JOSEPH COLANNINO, Igor A. Krichtafovitch, Robert E. Breidenthal, Christopher A. Wiklof 2018-01-02
9828288 Perforated burner for a rotary kiln JOSEPH COLANNINO, Christopher A. Wiklof 2017-11-28
9803855 Selectable dilution low NOx burner Igor A. Krichtafovich, JOSEPH COLANNINO, Christopher A. Wiklof 2017-10-31
9797595 Fuel combustion system with a perforated reaction holder Robert E. Breidenthal, JOSEPH COLANNINO, Christopher A. Wiklof 2017-10-24
9791171 Fluid heater with a variable-output burner including a perforated flame holder and method of operation JOSEPH COLANNINO 2017-10-17
9562682 Burner with a series of fuel gas ejectors and a perforated flame holder Robert E. Breidenthal, JOSEPH COLANNINO, Christopher A. Wiklof 2017-02-07
9447965 Burner with a perforated reaction holder and heating apparatus Robert E. Breidenthal, JOSEPH COLANNINO, Christopher A. Wiklof 2016-09-20
9388981 Method for flame location transition from a start-up location to a perforated flame holder JOSEPH COLANNINO, Igor A. Krichtafovitch, Christopher A. Wiklof 2016-07-12
9377190 Burner with a perforated flame holder and pre-heat apparatus JOSEPH COLANNINO, Igor A. Krichtafovitch, Christopher A. Wiklof 2016-06-28