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SCHWEIGER RICHARD GEORG

Overview
  • Total Patents
    28
About

SCHWEIGER RICHARD GEORG has a total of 28 patent applications. Its first patent ever was published in 1970. It filed its patents most often in United States, Canada and Finland. Its main competitors in its focus markets macromolecular chemistry and polymers, machines and organic fine chemistry are CHON DONG WON, ANHUI SUNHERE PHARMACEUTICAL EXCIPIENTS CO LTD and NARITA MITSUO.

Patent filings in countries

World map showing SCHWEIGER RICHARD GEORGs patent filings in countries
# Country Total Patents
#1 United States 8
#2 Canada 4
#3 Finland 3
#4 Norway 3
#5 Netherlands 2
#6 Philippines 2
#7 Sweden 2
#8 Belgium 1
#9 Italy 1
#10 Japan 1
#11 Romania 1

Patent filings per year

Chart showing SCHWEIGER RICHARD GEORGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Schweiger Richard G 18
#2 Schweiger Richard Georg 6
#3 Richiyaado Jiyooji Shiyuueigaa 1

Latest patents

Publication Filing date Title
US4419316A Process of making films, fibers or other shaped articles consisting of, or containing, polyhydroxy polymers
US4242506A Cross-linking of cellulose sulfate esters with tetravalent metal ions
US4177345A Process for preparing a sulfate ester of a polyhydroxy polymer
US4138535A Nitrite esters of polyhydroxy polymers
US4141746A Cellulose sulfate esters
US4143226A Process for preparing a sulfate ester of a polyhydroxy polymer
US4035569A Preparation of cellulose nitrite
PH14624A Preparation of cellulose nitrite
CA1045126A Water soluble polymer esters and process for producing same
CA979577A Polyhydroxypolymer esters and their preparation
US3702843A Nitrite,nitrate and sulfate esters of polyhydroxy polymers