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FRED SWAN

Overview
  • Total Patents
    11
About

FRED SWAN has a total of 11 patent applications. Its first patent ever was published in 1919. It filed its patents most often in United States. Its main competitors in its focus markets civil engineering and machines are TRI STATE OIL TOOL UK, SUBSURFACE TECHNOLOGY AS and SID W RICHARDSON INC.

Patent filings in countries

World map showing FRED SWANs patent filings in countries
# Country Total Patents
#1 United States 11

Patent filings per year

Chart showing FRED SWANs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering
#2 Machines

Focus technologies

# Technology
#1 Earth drilling
#2 Unspecified technologies

Top inventors

# Name Total Patents
#1 Fred Swan 11

Latest patents

Publication Filing date Title
US2111464A Underreamer
US1620700A Underreamer bit or cutter
US1620699A Underreamer
US1578482A Spring rod for underreamers
US1537203A Swivel jar wire-rope socket
US1529513A Fishing tool for wells
US1584704A Rope guide and lubricator for drill ropes
US1537202A Clamping ring for expansible tools
US1507444A Solid-wedge underreamer
US1537201A Dumping sand pump
US1372917A Underreamer