FRANZ ZWICK has a total of 17 patent applications. Its first patent ever was published in 1935. It filed its patents most often in Germany, United Kingdom and United States. Its main competitors in its focus markets electrical machinery and energy, machines and agriculture are MAURICE KILEMNIK, OMNICOLOR L P and SCHUCH LICHTTECH KG ADOLF.
# | Country | Total Patents | |
---|---|---|---|
#1 | Germany | 9 | |
#2 | United Kingdom | 4 | |
#3 | United States | 3 | |
#4 | Finland | 1 |
# | Industry | |
---|---|---|
#1 | Electrical machinery and energy | |
#2 | Machines | |
#3 | Agriculture | |
#4 | Chemical engineering | |
#5 | Civil engineering | |
#6 | Foods and drinks |
# | Technology | |
---|---|---|
#1 | Lighting device details | |
#2 | Shaping of plastics | |
#3 | Special light sources | |
#4 | Horticulture | |
#5 | Separation | |
#6 | Compounding processes | |
#7 | Certain plastics | |
#8 | Installations for obtaining water | |
#9 | Water-closets with flushing devices | |
#10 | Dairy products |
# | Name | Total Patents |
---|---|---|
#1 | Zwick Franz | 6 |
#2 | Franz Zwick | 4 |
Publication | Filing date | Title |
---|---|---|
US3259677A | Method of producing fluid-permeable shaped bodies | |
GB902178A | Improvements in or relating to toy bricks of thermoplastic synthetic resin material | |
US2900495A | Louver construction for lighting fixtures | |
GB751430A | Improvements in or relating to lamp shades | |
DE888831C | Screen grids for light sources | |
US2756325A | Mask for light sources | |
GB683972A | An improved mask for lighting fittings | |
DE855682C | Screen grids for light sources | |
GB434324A | Process for preserving rindless cheese |