of rotary cylinder type

Patents Grantslast 30 patents

  • Information Patent Grant

    Hot gas engine

    • Patent number 4,779,421
    • Issue date Oct 25, 1988
    • Oscar L. Fellows
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS

Patents Applicationslast 30 patents

  • Information Patent Application

    ROTARY EXPANSION ENGINE

    • Publication number 20120073298
    • Publication date Mar 29, 2012
    • Neemat FREM
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES