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FLEXIBLE SEWERTOOL CORP

Overview
  • Total Patents
    11
About

FLEXIBLE SEWERTOOL CORP has a total of 11 patent applications. Its first patent ever was published in 1957. It filed its patents most often in United States. Its main competitors in its focus markets civil engineering, packaging and shipping and machines are CAPERTON CHARLES B, CLEANPIPE AS and STEINHARDT LOTHAR.

Patent filings in countries

World map showing FLEXIBLE SEWERTOOL CORPs patent filings in countries
# Country Total Patents
#1 United States 11

Patent filings per year

Chart showing FLEXIBLE SEWERTOOL CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Prange Charles J 8
#2 Arnold Gordon D 1
#3 Jonathan Prange Charles 1
#4 Ciaccio Peter L 1

Latest patents

Publication Filing date Title
US3314095A Sewer cleaning brush and method of fabricating the same
US3298666A Reciprocable clutch means for feeding sewer tool drive rod
US3242518A Apparatus for feeding jointed sewer cleaning tool driving rod
US3337245A Dog clutch for cable winches
US3270982A Cable winding apparatus for cable drums of sewer cleaning machines
US3171149A Expansion cutter for sewer pipe cleaning
US3130432A Sewer rod feed reel with yieldable mouth closure means
US3083391A Reciprocative mechanism for feeding sewer cleaner drive rod
US3071794A Reel feed mechanism for feeding and rotating sewer cleaning tool drive rod
US3022908A Drag bucket dredging and dumping mechanism for culverts and the like
US2892557A Power bucket machine