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NORMA HOFFMANN BEARINGS CORP

Overview
  • Total Patents
    49
About

NORMA HOFFMANN BEARINGS CORP has a total of 49 patent applications. Its first patent ever was published in 1919. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets mechanical elements, machines and textiles and paper are SHAFER JULIUS E, ROLLWAY BEARING COMPANY INC and HESS BRIGHT MFG CO.

Patent filings in countries

World map showing NORMA HOFFMANN BEARINGS CORPs patent filings in countries
# Country Total Patents
#1 United States 44
#2 Canada 4
#3 United Kingdom 1

Patent filings per year

Chart showing NORMA HOFFMANN BEARINGS CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Bott George R 17
#2 Anderson Warren D 9
#3 Martinec Eugene F 3
#4 Henry Smith Charles 2
#5 Mueller Katherine M 2
#6 Leslie Hilton John 2
#7 Batesole Dwight E 2
#8 Mueller Frederick E 2
#9 Gerichtsnotar Stellrecht 1
#10 Kendall George H 1

Latest patents

Publication Filing date Title
US2883245A Retainer for anti-friction bearings
US2783104A Ball bearing separator and method of making the same
US2766082A Bearing seals
US2769642A Self-centering magnetic chuck
US2700298A Torque measuring device
GB632441A Oscillating raceway grinders and methods of grinding raceways
US2467437A Skate wheel structure
US2459406A Oscillating raceway grinder and method of grinding raceways
US2440650A Skate wheel structure
US2470071A Axle box
US2407388A Cage for ball bearings
US2457485A Cage for roller bearings
US2367554A Resilient ball separator
US2357597A Bearing mounting
US2353988A Seal for antifriction bearings
US2304944A Wheel construction
US2283839A Rubber insulated bearing unit
US2132249A Oil lubricated mounting
US2119990A Ball and roller bearing
US2117633A Roller thrust bearing