Howard Bidwell — 8 Patents at Unknown

Howard Bidwell has been granted 8 US patents while listed as an inventor at Unknown. The first was granted in 1984 and the most recent in May 1994. Howard Bidwell ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Howard Bidwell in Granby, MA, US.

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Showing 1–8 of 8 patents

Patent #	Title	Co-Inventors	Date
5313797	Exhaust gas turbine powered system for transforming pressure into rotative motion	—	1994-05-24
4802335	Method of and apparatus for improving the efficiency of internal combustion engines	—	1989-02-07
4791896	Water cooled scavenged crankcase type Otto internal combustion engine	—	1988-12-20
4781729	Method and apparatus for improving the efficiency of internal combustion engines	—	1988-11-01
4779576	Water cooled scavenged crankcase type otto internal combustion engine	—	1988-10-25
4774810	Method of and apparatus for improving the efficiency of internal combustion engines	—	1988-10-04
4773981	Apparatus for improving internal combustion engine efficiency	—	1988-09-27
4484444	Apparatus and methods of amplifying engine emissions by which to increase the overall engine efficiency	—	1984-11-27

Howard Bidwell — 8 Patents

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