SCHULZE ELFRIEDE has a total of 14 patent applications. Its first patent ever was published in 1986. It filed its patents most often in Germany, EPO (European Patent Office) and United States. Its main competitors in its focus markets environmental technology and chemical engineering are BEIJING YIQINGYUAN ENV PROT TECH CO LTD, CLEANUP & RECOVERY CORP and AUSTECH PTY LTD.
# | Country | Total Patents | |
---|---|---|---|
#1 | Germany | 5 | |
#2 | EPO (European Patent Office) | 3 | |
#3 | United States | 2 | |
#4 | Austria | 1 | |
#5 | Canada | 1 | |
#6 | Switzerland | 1 | |
#7 | Spain | 1 |
# | Industry | |
---|---|---|
#1 | Environmental technology | |
#2 | Chemical engineering |
# | Technology | |
---|---|---|
#1 | Water treatment | |
#2 | Chemical or physical processes |
# | Name | Total Patents |
---|---|---|
#1 | Schulze Elfriede | 12 |
#2 | Rudolph Eberhard | 10 |
#3 | Eberhard Rudolph | 1 |
Publication | Filing date | Title |
---|---|---|
DE4302160A1 | Softening water used in e.g. dishwashing machine - with controlled magnetic field at water flow directly before ion exchange unit | |
DE4125859A1 | Simple, cheap water scale magnetic dispersion appts. - has two=part tubular housing with linked inner channel and ring outer channel | |
EP0525835A2 | Scale removal and prevention device | |
DE4019630A1 | Device for removing or preventing formation of scale in pipe systems | |
EP0255914A2 | Scale removal and prevention device | |
DE3629288A1 | Device for removing boiler scales or for preventing boiler scales from forming |