H D TECH INC has a total of 37 patent applications. Its first patent ever was published in 1985. It filed its patents most often in United States, Norway and Australia. Its main competitors in its focus markets surface technology and coating, materials and metallurgy and chemical engineering are EDOUARD KREBS, KREBSKOSMO GES F CHEMIE ING TE and CHLORALP.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 8 | |
#2 | Norway | 5 | |
#3 | Australia | 4 | |
#4 | Canada | 4 | |
#5 | Finland | 4 | |
#6 | New Zealand | 4 | |
#7 | EPO (European Patent Office) | 3 | |
#8 | Sweden | 2 | |
#9 | Brazil | 1 | |
#10 | India | 1 | |
#11 | Poland | 1 |
# | Industry | |
---|---|---|
#1 | Surface technology and coating | |
#2 | Materials and metallurgy | |
#3 | Chemical engineering | |
#4 | Environmental technology |
# | Technology | |
---|---|---|
#1 | Electrolytic processes | |
#2 | Separation | |
#3 | Non-metallic elements | |
#4 | Reduction of greenhouse gas emissions |
# | Name | Total Patents |
---|---|---|
#1 | Clifford Arthur L | 26 |
#2 | Rogers Derek J | 25 |
#3 | Dong Dennis F | 12 |
#4 | Mathur Indresh | 9 |
#5 | James Allan | 8 |
#6 | Dong Dennis | 8 |
#7 | Noonan Edward B | 8 |
#8 | Loftfield Richard E | 7 |
#9 | Bissett David | 6 |
#10 | Benesch Katharina M | 5 |
Publication | Filing date | Title |
---|---|---|
US5316629A | Process for maintaining electrolyte flow rate through a microporous diaphragm during electrochemical production of hydrogen peroxide | |
US5244547A | Decreasing the concentration of hydroxyl ions in aqueous alkaline peroxide solutions | |
US5106464A | Decreasing the concentration of hydroxyl ions in aqueous alkaline peroxide solutions | |
EP0360536A2 | Cell and method of operating a liquid-gas electrochemical cell | |
US4969981A | Cell and method of operating a liquid-gas electrochemical cell | |
US4921587A | Porous diaphragm for electrochemical cell | |
US4872957A | Electrochemical cell having dual purpose electrode | |
US4927509A | Bipolar electrolyzer | |
US4891107A | Porous diaphragm for electrochemical cell |