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SARGENT & GREENLEAF

Overview
  • Total Patents
    247
  • GoodIP Patent Rank
    63,857
  • Filing trend
    ⇩ 100.0%
About

SARGENT & GREENLEAF has a total of 247 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 1921. It filed its patents most often in United States, United Kingdom and Canada. Its main competitors in its focus markets civil engineering, machines and control are KESO GMBH, ILCO UNICAN INC and KWIKSET CORP.

Patent filings per year

Chart showing SARGENT & GREENLEAFs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Evans Walter R 32
#2 Clark Michael R 28
#3 Murphree Gary R 16
#4 Lainhart Greg 16
#5 Miller Harry C 15
#6 Horne Marshall 14
#7 Lainhart Gregory C 14
#8 Clark Michael Robert 13
#9 Lowe Tommy O 12
#10 Helesfai Steven 12

Latest patents

Publication Filing date Title
EP3303738A1 High security electromechanical lock
WO2016126675A1 Mechanical override of an electronic lock
AU2015362707A1 Non-intrusive dial rotation detection of high security locks
US2016178159A1 Light for keypad bezel
CN105659564A System and method of initializing and controlling locks
NZ726066A High security lock
CA2807275A1 High security lock
AU2011237429A1 Shock resistant lock
BRPI0718705A2 Money tracking system
NZ543290A Local and remote management of lock systems from a network
US6510587B2 Door closure prevention apparatus and method
SE0100643D0 High security key operated lock, includes bolt blocking device for preventing lock picking using tumbler play
AU4565699A Intelligent interface between lock system and alarm system
EP1486632A1 Dead bolt combination lock and push-pull lock, each with integrated re-locking features, lock with auxiliary security features, and lock keypad with tamper detection and response features
US6094952A Dead bolt combination lock with integrated re-locking features
US5749252A Manipulation resistant combination lock and method
US5502990A Recodable lever tumbler lock for use in high security safes
CN1136835A Electronic combination lock
US5473919A Manipulation resistant combination lock with magnets
US5473922A Motorized electronic lock