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AMERICAN PETRO MART INC

Overview
  • Total Patents
    78
About

AMERICAN PETRO MART INC has a total of 78 patent applications. Its first patent ever was published in 1978. It filed its patents most often in United States, Brazil and EPO (European Patent Office). Its main competitors in its focus markets materials and metallurgy, chemical engineering and environmental technology are CLEAN TEQ PTY LTD, PNII GIPRONIKEL and KOREA ZINC CO LTD.

Patent filings in countries

World map showing AMERICAN PETRO MART INCs patent filings in countries

Patent filings per year

Chart showing AMERICAN PETRO MART INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Whitney Solon Gene 25
#2 Whitney Solon G 14
#3 Erickson William Richard 14
#4 Hedrick Harold Nelson 12
#5 Hedrick Harold N 7
#6 Lawton William S 6
#7 Thomas William P 6
#8 Erickson William R 6
#9 Carlson Lee Gerald 3
#10 Carlson Lee G 3

Latest patents

Publication Filing date Title
US4721519A Stable ammonium polyphosphate liquid fertilizer from merchant grade phosphoric acid
US4461710A Adjustably metered transfer of resin increments in folded bed ion exchange systems
US4493907A Method of using higher concentration sulfuric acid for stripping and precipitation of adsorbed magnesium
AU8467682A Removing magnesium from cation exchangers
US4363880A Method of selectively removing adsorbed calcium and magnesium from cation exchange resins
US4385993A Method and apparatus for folded moving bed ion exchange system
BR7908077A Mobile bed ion exchanger and mobile bed ion exchange process
US4280904A High capacity folded moving bed ion exchange apparatus and method for treating phosphoric acid
US4228001A Folded moving bed ion exchange apparatus and method