Mark R. Hapgood — 4 Patents at Combustion Engineering

Mark R. Hapgood has been granted 4 US patents while listed as an inventor at Combustion Engineering. The first was granted in 1998 and the most recent in October 1999. Mark R. Hapgood ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Mark R. Hapgood in Tolland, CT, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
D414859	Single-piece grate bar key for stokers feeding steam generator furnaces	Jeffrey S. Mann, Ivan Semyanko	1999-10-05
D391633	Multi-piece wide stoker key for stokers feeding steam generator furnaces	Milton A. Fong, Ivan Semyanko	1998-03-03
D391634	One piece wide stoker key for stokers feeding steam generator furnaces	Milton A. Fong, Ivan Semyanko	1998-03-03
D390949	Grate bar key for stokers feeding steam generator furnaces	Milton A. Fong, Ivan Semyanko	1998-02-17

Mark R. Hapgood — 4 Patents

Issued Patents All Time

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