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DUFFY JOHN

Overview
  • Total Patents
    17
  • GoodIP Patent Rank
    219,228
  • Filing trend
    0.0%
About

DUFFY JOHN has a total of 17 patent applications. It increased the IP activity by 0.0%. Its first patent ever was published in 1897. It filed its patents most often in United States, United Kingdom and Canada. Its main competitors in its focus markets civil engineering, computer technology and machines are SOSY INC, QINGYUAN YUNSHANG TECH CO LTD and ADVANCED LOGIC RES INC.

Patent filings in countries

World map showing DUFFY JOHNs patent filings in countries

Patent filings per year

Chart showing DUFFY JOHNs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Duffy John 16
#2 Callahan Ii Charles D 3
#3 Essey Edward G 3
#4 Toub Stephen H 2
#5 Hejlsberg Anders 1

Latest patents

Publication Filing date Title
US2019017319A1 Automatic operation of building window using magnetic fields
US2009327999A1 Immutable types in imperitive language
US2009300224A1 Collection with local lists for a multi-processor system
US2009300591A1 Composable and cancelable dataflow continuation passing
US2009144346A1 Partitioning and repartitioning for data parallel operations
US2009144232A1 Data parallel searching
US2009144228A1 Data parallel production and consumption
GB9927534D0 Fence post support assembly
GB9721766D0 Jigsaw blade guide and support assembly
CA195448A Fuel mixer
GB190415238A Improvements in Sash Pulleys.
US763546A Sash-pulley.
US763545A Sash-pulley.
US660629A Sash-pulley.