Learn more

PACKLESS METAL HOSE INC

Overview
  • Total Patents
    34
About

PACKLESS METAL HOSE INC has a total of 34 patent applications. Its first patent ever was published in 1950. It filed its patents most often in United States, WIPO (World Intellectual Property Organization) and EPO (European Patent Office). Its main competitors in its focus markets machine tools, machines and mechanical elements are CERRO FLOW PRODUCTS LLC, TAYLOR FORGE & PIPE WORKS and BUNDY CORP.

Patent filings per year

Chart showing PACKLESS METAL HOSE INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zifferer L Robert 16
#2 Reed Edward A 14
#3 Zifferer Lothar R 4
#4 Robert Zifferer Lothar 1
#5 Neil Andrew 1
#6 H Shepherd Dale 1
#7 Zifferer Lothar Robert 1
#8 Zifferer Robert L 1
#9 Charles Barton Edwin 1
#10 Shepherd Dale H 1

Latest patents

Publication Filing date Title
US2007022800A1 Method for forming a lined conduit
CA2573677A1 Method and apparatus for forming a modified conduit
US6923035B2 Method and apparatus for forming a modified conduit
US6488079B2 Corrugated heat exchanger element having grooved inner and outer surfaces
US6760972B2 Apparatus and methods for forming internally and externally textured tubing
US5803128A Braided conduit and method of making a braided conduit
US5813438A Braided conduit and method of making a braided conduit
US5409057A Heat exchange element
US5311661A Method of pointing and corrugating heat exchange tubing
US4846148A Heating apparatus and method
US4768495A Heating apparatus and method
US4514997A Tube corrugating die
DE3310133C1 Method and apparatus for the helical corrugation of metallic tubes
GB8306476D0 Tube corrugating apparatus and method
US2987329A Corrugated metal hose connections
US2695183A Connector for flexible tubing