Inventor
Douglas W. KARKOW
Inventor
US
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F23Dprimary
F23DBurners27%
F23CMethods or apparatus for combustion using fluid fuel or solid fuel suspended in a carrier gas or air19%
F27DDetails or accessories of furnaces, kilns, ovens or retorts, in so far as they are of kinds occurring in more than one kind of furnace14%
F23NRegulating or controlling combustion11%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution11%
F23MCasings, linings, walls or doors specially adapted for combustion chambers, e.g. firebridges5%
F23LSupplying air or non-combustible liquids or gases to combustion apparatus in general3%
F23QIgnition3%
F23RGenerating combustion products of high pressure or high velocity, e.g. gas-turbine combustion chambers3%
F27BFurnaces, kilns, ovens or retorts in general3%
PatentTitleYear
12,359,804Burner system with discrete transverse flame stabilizers202512,066,248Burner system including a plurality of perforated flame holders202411,953,201Control system and method for a burner with a distal flame holder202411,953,199Burner and burner system with flange mount202411,460,188Ultra low emissions firetube boiler burner202211,435,143Burner system with discrete transverse flame stabilizers202211,313,553Plug and play burner202211,248,786Method for a perforated flame holder with adjustable fuel nozzle202211,221,137Field installed perforated flame holder and method of assembly and installation202211,156,356Fuel combustion system with a perforated reaction holder2021Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2021–2025Patents assigned to CLEARSIGN TECH CORPORATION (9)· patent assignee history
2021–2022Patents assigned to CLEARSIGN COMB CORP (3)· patent assignee history
2021–2025Based in US· patent location history
2024Patents assigned to CLEARSIGN TECH COPORATION (1)· patent assignee history
2024Patents assigned to CLEARSIGN TECH INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CLEARSIGN TECH CORPORATION | 9 | 2021–2025 |
| CLEARSIGN COMB CORP | 3 | 2021–2022 |
| CLEARSIGN TECH COPORATION | 1 | 2024 |
| CLEARSIGN TECH INC | 1 | 2024 |
Locations
| Location | Patents | Span |
|---|---|---|
| US | 10 | 2021–2025 |