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BUBBLESTONE COMPANY

Overview
  • Total Patents
    13
About

BUBBLESTONE COMPANY has a total of 13 patent applications. Its first patent ever was published in 1922. It filed its patents most often in United States and France. Its main competitors in its focus markets machines, materials and metallurgy and chemical engineering are GRANULITE LTD, SCHWANENBERG ERICH and PROTEX IND INC.

Patent filings in countries

World map showing BUBBLESTONE COMPANYs patent filings in countries
# Country Total Patents
#1 United States 12
#2 France 1

Patent filings per year

Chart showing BUBBLESTONE COMPANYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Rice John A 12
#2 Rice Richard B 1
#3 Rickard Eric M 1

Latest patents

Publication Filing date Title
US2087550A Process of producing acoustic material
US2069078A Apparatus for producing cellular cementitious materials
US1985905A Method of making cellular concrete
US1826897A Method of treating foam compounds
US1716932A Method of and apparatus for mixing foam with plastic materials
US1753429A Apparatus for producing foam
US1717319A Process of manufacturing cellular concrete
US1769275A Method of making porous concrete by forcing air into cement slurries
US1788592A Method of manufacturing artificial traverting or the like
US1749508A Process of making porous products
US1856294A Process for producing alpha foamy body adapted to be used in making cellular concrete
US2053842A Cellular cement and a process for making the same