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HOLT FREDERICK BRERETON

Overview
  • Total Patents
    14
About

HOLT FREDERICK BRERETON has a total of 14 patent applications. Its first patent ever was published in 1913. It filed its patents most often in United Kingdom. Its main competitors in its focus markets electrical machinery and energy are KEITAN KAGI KOFUN YUGENKOSHI, HYUNDAY HEVI IND KO BULGARIA AD and JANUSZKIEWICZ EDWARD.

Patent filings in countries

World map showing HOLT FREDERICK BRERETONs patent filings in countries
# Country Total Patents
#1 United Kingdom 14

Patent filings per year

Chart showing HOLT FREDERICK BRERETONs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

# Technology
#1 Electric switches

Top inventors

# Name Total Patents
#1 Holt Frederick Brereton 14
#2 Smith Harry 7
#3 Moeller Egron Olof 1

Latest patents

Publication Filing date Title
GB104733A Improvements in Stationary Contacts for Electric Switches or Circuit Breakers.
GB191504144A Improvements relating to Oil-immersed Electric Switches or Circuit Breakers.
GB191503505A Improvements in Distribution or Fuse Boxes for Electric Circuits.
GB191419598A Improvements in Electric Switches.
GB191328746A Improved Terminal Pieces and Contacts for Electric Circuit Interrupters.
GB191420796A Improvements in Electric Switches.
GB191406070A Improvements in Electric Switches or Circuit Breakers.
GB191325833A Improvements in Elecetric Switches.
GB191325477A Improvements in Electrical Switches or Circuit Breakers.
GB191324593A Improvements in or relating to Electric Switches or Circuit Breakers.
GB191324594A Improvements in or relating to Electric Switches or Circuit Breakers.
GB191419700A Improvements in or relating to Electric Switches or Circuit Breakers.
GB191323247A Improvements in Electrical Switches or Circuit Breakers.