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INVISA INC

Overview
  • Total Patents
    15
About

INVISA INC has a total of 15 patent applications. Its first patent ever was published in 2001. It filed its patents most often in United States, Australia and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets measurement, control and civil engineering are KS TECHNO CO LTD, ONTECH SECURITY S L and WERN LARS AAKE.

Patent filings per year

Chart showing INVISA INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Fergusson Robert T 10
#2 Tannehill Scott 3
#3 Michael Stephen 3
#4 Fergusson Robert 2
#5 Michael Stephen A 2
#6 Leferson Peter 1

Latest patents

Publication Filing date Title
WO2007147115A2 Capacitive sensors allowing contact detection of non-conducting objects
US2006055534A1 Digital capacitive sensing device for security and safety applications
AU2003296437A1 Method of steering capacitor fields for use in capacitive sensing security systems
NZ538068A Apparatus and method for processing capacitor sensor signals using digital frequency shift measurement techniques with floating reference
AU2003258320A1 Security apparatus for the detection of approaching objects
US6819242B2 Apparatus for use with capacitive presence detection systems
EP1332481A1 Apparatus for use with capacitive presence detection systems