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SCREW & BOLT CORP OF AMERICA

Overview
  • Total Patents
    36
About

SCREW & BOLT CORP OF AMERICA has a total of 36 patent applications. Its first patent ever was published in 1960. It filed its patents most often in Canada, United States and United Kingdom. Its main competitors in its focus markets mechanical elements, machines and machine tools are SIMMONDS SA, TRIANGLE FASTENER CORP and HIRABAYASHI FUMIO.

Patent filings in countries

World map showing SCREW & BOLT CORP OF AMERICAs patent filings in countries
# Country Total Patents
#1 Canada 10
#2 United States 10
#3 United Kingdom 7
#4 France 4
#5 Germany 2
#6 Switzerland 1
#7 Spain 1
#8 Sweden 1

Patent filings per year

Chart showing SCREW & BOLT CORP OF AMERICAs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Johnson Kenneth L 8
#2 Anthony Jay D 6
#3 Tufts Marshall W 4
#4 Lovisek Louis J 3
#5 Tufts M 1
#6 Johnson Kenneth Liebold 1
#7 Skidmore Harold J 1
#8 L Johnson Kenneth 1

Latest patents

Publication Filing date Title
US3456704A Prevailing torque locknut
US3435871A Weld element
US3229492A Method of obtaining improved machining characteristics of ferrous materials
US3286579A Self-tapping screw
US3322019A Plasterboard screw
US3238542A Method and apparatus for making drive screws
GB1019698A Weld element, method of making and utilizing it
GB1045012A Improvements in connecting sheet material
US3208494A Prevailing torque lock nut
US3266459A Chemical compound applicator for threaded fasteners
GB945669A Self-locking threaded fastener
US3230118A Method of developing high physical properties in ferrous material and product produced thereby
US3061455A Self-locking threaded fastener
CA804275A Cold working of ferrous stock
CA717739A Weld element, method of making and utilizing it
CA804572A Cold working of ferrous bar stock
CA690758A Self-locking threaded fastener
CA804162A Fastener and electrode therefor
CA739393A Chemical compound applicator for threaded fasteners
CA836143A Fastener and electrode therefor