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JOHNSTON LAB INC

Overview
  • Total Patents
    19
About

JOHNSTON LAB INC has a total of 19 patent applications. Its first patent ever was published in 1969. It filed its patents most often in United States, Australia and Belgium. Its main competitors in its focus markets biotechnology, machines and measurement are BUNSHI BIOPHOTONICS KENKYUSHO, TAITEC CORP and Ningbo meijing medical technology co ltd.

Patent filings per year

Chart showing JOHNSTON LAB INCs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Ahnell Joseph E 8
#2 Waters John R 7
#3 Broman Rodney L 3
#4 Ahnell J E 2
#5 Ahnell J 2
#6 Buda Dennis 1
#7 R Water John 1
#8 Middlebrook Gardner 1
#9 Tigertt W D 1

Latest patents

Publication Filing date Title
NZ194089A Electrolytic detection of microorganisms: redox potential determination
AU6059280A Pulsed voltammetric detection of microorganism
US4220715A Apparatus for and method of detection of significant bacteriuria in urine samples through measurement of head space gas oxygen consumption in a closed-vial system
US4152213A Vacuum detection of bacteria
US4182656A Method for detecting the presence of biologically active agents utilizing 13 C-labeled substrates
US4073691A Method for detecting the presence of biologically active agents
US4073694A Microbiological assay of aminoglycoside antibiotics
US3997404A Method and apparatus for characterizing biologically active agents
US3944471A Method and apparatus for detecting biological activity
US3948729A Assay of gentamicin in blood
US3935073A Method for detecting bacteria
US3676679A Apparatus for detecting biological activity