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SPAN INSTR INC

Overview
  • Total Patents
    23
About

SPAN INSTR INC has a total of 23 patent applications. Its first patent ever was published in 1977. It filed its patents most often in United States, Australia and Canada. Its main competitors in its focus markets measurement, machines and control are BARTON JONES, HODGSON JOHN LAWRENCE and MANNING COLEMAN J.

Patent filings in countries

World map showing SPAN INSTR INCs patent filings in countries

Patent filings per year

Chart showing SPAN INSTR INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Gray Tommy L 14
#2 Gray Tommy Lee 5
#3 Leyden Iii William Thomas 1
#4 Ross Kevin Cochrane 1
#5 Paynter Bruce 1
#6 Jordon Iii John Fletcher 1
#7 Tran Khanh Huy 1
#8 Adamic Jr Joseph W 1
#9 Mccarrick Henry J 1
#10 Mccarrick Henry Jemison 1

Latest patents

Publication Filing date Title
US5949049A Inventory control probe and control module with docking station
US5518951A Method for making thin film piezoresistive sensor
US5253669A Controlling process gas flow
US5218991A Regulator flow control
US5138155A Pressure gauge with fiber optic sensor
US5056373A Flow responsive transmitter and indicator
US5051729A Pressure responsive encoder
US4898036A Flow responsive transmitter and indicator
US4745811A Pressure monitoring apparatus having a Hall-effect detector
US4599902A Condition responsive apparatus
US4331179A Regulator/valve controller
US4270568A Sensor with adjustable pressure responsive detection and control
US4184375A Pressure instrument compensating bladder
US4173150A Sensor with adjustable pressure responsive detection and control