Learn more

PRATT & WHITNEY CO

Overview
  • Total Patents
    635
About

PRATT & WHITNEY CO has a total of 635 patent applications. Its first patent ever was published in 1895. It filed its patents most often in United States, United Kingdom and France. Its main competitors in its focus markets machine tools, machines and measurement are JONES & LAMSON MACH CO, MOLINE TOOL COMPANY and MARQUART INGEBORG.

Patent filings in countries

World map showing PRATT & WHITNEY COs patent filings in countries
# Country Total Patents
#1 United States 560
#2 United Kingdom 23
#3 France 20
#4 Germany 18
#5 Switzerland 8
#6 Austria 5
#7 Denmark 1

Patent filings per year

Chart showing PRATT & WHITNEY COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hanson Bengt M W 170
#2 Friederich Muller 42
#3 Thacher John J 28
#4 Carroll Knowles 27
#5 Blood Bryant H 21
#6 Hoagland Frank O 19
#7 Shaw Robert D 17
#8 Hoke William E 15
#9 Earle Buckingham 14
#10 Mueller Friederich 11

Latest patents

Publication Filing date Title
GB811047A Machine tool with automatic positioning means
GB762341A Machine tool
GB762342A Machine tool
GB762271A Machine tool
GB451157A Improvements in and relating to electrically operated turning lathes
GB445812A Improvements in and relating to thickness gage
US1996439A Automatic template following profiling tracer
US2011086A Form turning lathe
US2032598A Automatic electrically operated lathe for multiple diameter turning
GB422380A Improvements in and relating to automatic lathes
US1996438A Profiling tracer
US1996408A Profiling machine
US2020443A Compensating means for gear tooth grinders
US2037635A Profiling machine
US2005509A Electrically operated lathe
US1971121A Compensating means for cam milling machines
US2022061A Gear grinder
US2005508A Screeding machine
US1997916A Adjustable work clamping device
US1980336A Chuck retaining means