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LETRO PRODUCTS INC

Overview
  • Total Patents
    25
About

LETRO PRODUCTS INC has a total of 25 patent applications. Its first patent ever was published in 1995. It filed its patents most often in United States, EPO (European Patent Office) and Australia. Its main competitors in its focus markets civil engineering, machines and transport are GO PAPA LLLP, BAEJIN CORP and STEELDECK IND LTD.

Patent filings per year

Chart showing LETRO PRODUCTS INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Campbell Sanford F 24
#2 Gopalan Suresh Cherulassery 9
#3 Jones Robert E 8
#4 Martin Bret 3
#5 Caris Daniel D 2
#6 Ellis James P 1
#7 Campbell Sanford 1

Latest patents

Publication Filing date Title
WO0238238A2 Suction pool cleaner with noise damping valve
US6357478B1 Suction flow regulator
US6379542B1 Pool cleaner with righting weight assembly
US6423217B1 Pool cleaner having vortex drive tube
US6193885B1 Pool cleaner debris bag
US6158464A Low pressure back-up valve for pool cleaner
US5933899A Low pressure automatic swimming pool cleaner
US6099091A Traction enhanced wheel apparatus
US6035879A Automatic fill valve assembly
US5893188A Automatic swimming pool cleaner
US5603135A Pool cleaner with replaceable mast