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EDWAL LAB INC

Overview
  • Total Patents
    14
About

EDWAL LAB INC has a total of 14 patent applications. Its first patent ever was published in 1937. It filed its patents most often in United States and United Kingdom. Its main competitors in its focus markets organic fine chemistry, optics and packaging and shipping are CHEMISCHE FABRIKEN DR JOACHIM, WUHAN SANJIANG SPACE GOOD BIOTECH CO LTD and KABANOV V A.

Patent filings in countries

World map showing EDWAL LAB INCs patent filings in countries
# Country Total Patents
#1 United States 11
#2 United Kingdom 3

Patent filings per year

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

Top inventors

# Name Total Patents
#1 John Krueger 5
#2 Lenhart Hayes Robert 3
#3 Krueger John 2
#4 Kaplan Julius F 2
#5 Charles Mellick 2
#6 Morton Schwarcz 1
#7 Marie Guthier Ruth 1
#8 Pfeifer George T 1
#9 Morton Schwarez 1
#10 Lowe Edmund W 1

Latest patents

Publication Filing date Title
GB722256A Preparation of symmetrical triamino-benzene compounds
US2599518A High contrast photographic developers
GB691803A Improvements in or relating to a sealed container, can, or package and method of forming the same
GB693752A Preparation of symmetrical trihydroxybenzene compounds
US2614126A Preparation of symmetrical trihydroxybenzene compounds
US2652148A Combination package
US2537791A Method for production of hydrazine and/or hydrazine hydrate
US2502382A Method of preparing orthohalomercuriphenol
US2502222A Method of preparing phenyl mercuric acetate and nitrate
US2517496A Preparation of symmetrical monoaminodihydroxytoluene
US2461498A Preparation of symmetrical triaminobenzene compounds
US2447019A Preparation of diaminocresol
US2447020A Preparation of diaminophenol
US2164280A Photographic developer