Learn more

PLOETZ ROLF

Overview
  • Total Patents
    14
About

PLOETZ ROLF has a total of 14 patent applications. Its first patent ever was published in 1997. It filed its patents most often in Germany, WIPO (World Intellectual Property Organization) and EPO (European Patent Office). Its main competitors in its focus markets machine tools, materials and metallurgy and civil engineering are FRY S METAL FOUNDRIES LTD, KUNSHAN CHUNBAI PREC HARDWARE CO LTD and BAOSTEEL TAILORED BLANKS GMBH.

Patent filings per year

Chart showing PLOETZ ROLFs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ploetz Rolf 14

Latest patents

Publication Filing date Title
DE102008049947A1 Method for connecting two rail ends and device for vibration relaxation of the welded joint
DE10247751A1 Method and apparatus for welding head hardened rails
EP1121221A1 Method for aluminothermic joint welding of two rails separated by a gap and casting mold for implementing said method
DE19849454A1 Process for the aluminothermic connection welding of two rails laid on a gap and casting mold for carrying out the process
DE19822851A1 Transportable reaction crucible for metallothermic welding material for once-only use
DE19746451A1 Aluminothermic rail welding mold has an enlarged riser section in the rail foot region