DROFF CHEMINEES has a total of 22 patent applications. Its first patent ever was published in 1972. It filed its patents most often in France, Germany and EPO (European Patent Office). Its main competitors in its focus markets thermal processes and machines are HENNIGES & HOLZHEUER, BOIDRON MICHEL and PELZER BERNHARD.
# | Country | Total Patents | |
---|---|---|---|
#1 | France | 5 | |
#2 | Germany | 3 | |
#3 | EPO (European Patent Office) | 2 | |
#4 | Spain | 2 | |
#5 | Argentina | 1 | |
#6 | Austria | 1 | |
#7 | Brazil | 1 | |
#8 | Canada | 1 | |
#9 | Finland | 1 | |
#10 | Italy | 1 | |
#11 | Netherlands | 1 | |
#12 | Norway | 1 | |
#13 | Sweden | 1 | |
#14 | United States | 1 |
# | Industry | |
---|---|---|
#1 | Thermal processes | |
#2 | Machines |
# | Technology | |
---|---|---|
#1 | Domestic stoves for solid fuels | |
#2 | Unspecified technologies |
# | Name | Total Patents |
---|---|---|
#1 | Richard Gilbert Gerard | 5 |
#2 | Richard Gilbert G | 1 |
#3 | Richard Gilbert | 1 |
#4 | Richard G G | 1 |
#5 | Richard G | 1 |
#6 | Pibernat Thierry | 1 |
Publication | Filing date | Title |
---|---|---|
EP0040557A1 | Heating device with a heat-recovery system | |
FR2419468A1 | LIVE COMBUSTION APPLIANCE | |
US3910252A | Open hearth-room-heating devices working on closed circuit | |
ES415195A3 | Tragic device for domestic chimney. (Machine-translation by Google Translate, not legally binding) | |
DE2253147A1 | DEVICE FOR STEERING THE GAS FLOW IN THE ENTRANCE OF A CHIMNEY AND REGULATING THE DRAFT |