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GRAVELL JAMES H

Overview
  • Total Patents
    48
About

GRAVELL JAMES H has a total of 48 patent applications. Its first patent ever was published in 1915. It filed its patents most often in United States and Canada. Its main competitors in its focus markets surface technology and coating, machines and basic materials chemistry are RETOMAX AG, Hefei huaqing fangxing surface technology co ltd and BENGBU CITY YUCHENG HARDWARE INDUSTRY & TRADE CO LTD.

Patent filings in countries

World map showing GRAVELL JAMES Hs patent filings in countries
# Country Total Patents
#1 United States 35
#2 Canada 13

Patent filings per year

Chart showing GRAVELL JAMES Hs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Gravell James H 48

Latest patents

Publication Filing date Title
US2052763A Apparatus for introducing fuel adjuncts into internal combustion engines
US1921668A Organic compound and method of treating the same
US1932015A Composition of matter for selectively controlling metal pickling baths
US1740731A Method of preparing metal for painting
US1697643A Nonresounding metal vat
US1700491A Material and process for removing paint and varnish
US1632833A Metal pickling
US1555798A Metal pickling
US1525606A Composition of matter and process for preparing metal for painting
US1503443A Process and material for preparing metal for coating
US1549411A Material and process for preparing metal for painting
US1592102A Material and process for preventing metal from rusting
US1549410A Rust-removing composition for metals
US1572354A Rustproofing bath for iron and steel
US1499611A Phosphoric acid in dehydrated form and method of making the same
US1428088A Soldering solution
US1518194A Container
US1428087A Rust-resisting steel and method of producing same
US1549409A Sand blasting
US1428086A Paint for and method of preventing heated surfaces from rusting