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SP MFG CORP

Overview
  • Total Patents
    58
About

SP MFG CORP has a total of 58 patent applications. Its first patent ever was published in 1950. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets machine tools, machines and mechanical elements are SHEFFER COLLET CO, MIYAKAWA INDUSTRY CO LTD and WOODWORTH CO N A.

Patent filings in countries

World map showing SP MFG CORPs patent filings in countries

Patent filings per year

Chart showing SP MFG CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Sampson Merritt B 29
#2 Ovanin George J 11
#3 Young Alan H 6
#4 Gailey Edward D 5
#5 Hall William E 3
#6 Ovanin George John 2
#7 Nagy Joseph 2
#8 Jiyooji Jiei Obanin 1
#9 Jiyooji Jiyon Obanin 1
#10 Highberg George A 1

Latest patents

Publication Filing date Title
US4685687A Workholder
JPS6254607A Work holder
EP0218756A1 Improved workholder
US4621568A Rotary hydraulic cylinder
US4546988A Chuck top jaw with removable insert
US4550922A Workholder
US4909521A Chuck having gripping and locating sensors
JPS51118181A Rotaing chuck
US3984114A Chuck with anti-centrifugal force feature
US3945275A Rotary jaw chuck with stock detector
US3858893A Self-centering and compensating chuck
CA980102A Self-centering and compensating chuck
US3559539A Fluid actuator construction
US3612553A Low profile fluid actuated chuck
US3523545A Fluidic signal generator
GB1171571A Machine Tools
US3481612A Piston ring construction
US3417672A Rotary hydraulic cylinder
US3468551A Chuck
US3460849A Variable force chuck construction