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CHICAGO PNEUMATIC TOOL CO

Overview
  • Total Patents
    1,883
About

CHICAGO PNEUMATIC TOOL CO has a total of 1,883 patent applications. Its first patent ever was published in 1897. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets machine tools, machines and civil engineering are INDEPENDENT PNEUMATIC TOOL CO, BRIDGEPORT HARDWARE MFG CORP and CHEN BO SHEN.

Patent filings per year

Chart showing CHICAGO PNEUMATIC TOOL COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Wallace William K 91
#2 Amtsberg Lester A 84
#3 Giardino David A 79
#4 Stevens Edward W 68
#5 Fischer Howard R 68
#6 Reed Clarence E 67
#7 Davenport Ransom W 50
#8 Nell Gustave M 48
#9 Lear Earl B 41
#10 Wallace William Keith 33

Latest patents

Publication Filing date Title
TW200611789A Retrofit kit for a modular control apparatus for a power impact tool
TW200603950A Anvil system for pneumatic ratchet wrench
EP1742774A2 Control device for a power impact tool
US6823949B2 Modular control apparatus for a power impact tool
US6988565B2 Retrofit kit for a modular control apparatus for a power impact tool
US6581697B1 Power impact tool torque apparatus
AU2002216676A1 Vibration isolated impact wrench
US6705409B2 Reciprocating tool having a piston retaining system
US2002020538A1 Processes of determining torque output and controlling power impact tools using a torque transducer
US6318479B1 Vibration isolated impact wrench
US6250399B1 Pneumatic tool with a reverse valve having an overdrive
US6311786B1 Process of determining torque output and controlling power impact tools using impulse
CN1206647A Twin lobe impact mechanism
US6070674A Modified cage member for an impact mechanism
EP0876883A2 Pneumatic tool with a reverse valve having an overdrive
US6026910A Power tool and vibration isolator therefor
EP0849052A2 Throttle air inlet for a pneumatic tool
US5896789A Ratchet wrench head
US5896934A Reciprocating tool having a piston retainer
US6003618A Twin lobe impact mechanism