FRANZ SEIFFERT & CO AG has a total of 19 patent applications. Its first patent ever was published in 1909. It filed its patents most often in Germany, United Kingdom and Austria. Its main competitors in its focus markets mechanical elements, machine tools and control are EVANS G J, KUMAGAI TEKKOSHO KK and KUNSHAN CITY ZHANGPU TOWN JIAJUHUI ELECTRONIC FACTORY.
# | Country | Total Patents | |
---|---|---|---|
#1 | Germany | 8 | |
#2 | United Kingdom | 5 | |
#3 | Austria | 2 | |
#4 | France | 2 | |
#5 | Ireland | 1 | |
#6 | United States | 1 |
# | Industry | |
---|---|---|
#1 | Mechanical elements | |
#2 | Machine tools | |
#3 | Control | |
#4 | Materials and metallurgy | |
#5 | Engines, pumps and turbines |
# | Name | Total Patents |
---|---|---|
#1 | Kropff Waldemar Von Dipl-Ing | 2 |
#2 | Schwenk Erich | 1 |
#3 | Buchholz Wilhelm | 1 |
#4 | Kropff Dipl-Ing Waldemar V | 1 |
#5 | Samland Willi | 1 |
#6 | Reichel Walter Dr-Ing | 1 |
#7 | Leppin Otto | 1 |
#8 | Wilhelm Pcuthert | 1 |
#9 | Kropff Dipl-Ing Waldemar Von | 1 |
Publication | Filing date | Title |
---|---|---|
DE937500C | Stuffing box expansion compensator | |
DE858916C | Relieved expansion compensator for pipes | |
DE724078C | Device for heating bodies, in particular for annealing circular weld seams | |
GB530872A | Improvements in or relating to pipe lines | |
US2157564A | Expansion bend | |
IE14786L | Pipe line compensators | |
GB411979A | Improvements in or relating to governors for operating regulators safety devices, closure members and the like | |
GB372418A | Improvements in and relating to slide valves | |
GB328591A | Improvements in or connected with centrifugal pumps for boiler feeding | |
GB232161A | Improvements in or relating to sliding valves |