Learn more

DUMBECK ROBERT F

Overview
  • Total Patents
    14
About

DUMBECK ROBERT F has a total of 14 patent applications. Its first patent ever was published in 1977. It filed its patents most often in United States, Japan and Belgium. Its main competitors in its focus markets environmental technology, thermal processes and machines are STEPHENS DAVID H, HOLLICK JOHN C and MECKLER MILTON.

Patent filings in countries

World map showing DUMBECK ROBERT Fs patent filings in countries
# Country Total Patents
#1 United States 10
#2 Japan 2
#3 Belgium 1
#4 Canada 1

Patent filings per year

Chart showing DUMBECK ROBERT Fs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Dumbeck Robert F 11
#2 Robaato Efu Danbetsuku 2

Latest patents

Publication Filing date Title
US5153520A Identifying and quantifying the presence of alpha radiation and specific gaseous molecules present in air samples
JPS63117254A Detector for contaminated air in dwelling
CA1256221A Device for radon detection of contaminated air in dwellings
US4915020A Radon control in dwellings
US4868546A Radon detector
US4567939A Computer controlled air conditioning systems
US4557084A Energy efficient building with underground concrete walls
US4495448A Means and method of sensing motor rotation speed from stray escaping flux
US4324947A Solar energy collector system
US4333268A Energy saving electrically actuated barrier gate control means operable from solar energy
US4275711A Solar energy collector system
US4153047A Heat storage systems