WILHELM KROLL DR ING has a total of 17 patent applications. Its first patent ever was published in 1920. It filed its patents most often in Germany. Its main competitors in its focus markets materials and metallurgy, surface technology and coating and environmental technology are CNMC NINGXIA ORIENT GROUP CO LTD, FORONI SPA and NAT SMELTING CO.
# | Country | Total Patents | |
---|---|---|---|
#1 | Germany | 17 |
# | Industry | |
---|---|---|
#1 | Materials and metallurgy | |
#2 | Surface technology and coating | |
#3 | Environmental technology | |
#4 | Machine tools |
# | Name | Total Patents |
---|---|---|
#1 | Kroll Dr-Ing Wilhelm | 2 |
Publication | Filing date | Title |
---|---|---|
DE593783C | Compensation for titanium-containing copper or titanium-containing copper alloys | |
DE483431C | Removal of iron from ferrous material, especially alloys |