John Head — 9 Patents at Unknown

John Head has been granted 9 US patents while listed as an inventor at Unknown. The first was granted in 2012 and the most recent in November 2025. John Head ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list John Head in Largo, FL, US.

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #	Title	Co-Inventors	Date
12480589	Pressure relief valve assembly including series coupled valves and related methods	James Oliver French, Don Christensen	2025-11-25
12085181	Dual poppet pressure relief valve with vacuum adaptor capability	Don Christensen	2024-09-10
11703139	Dual poppet pressure relief valve with vacuum adaptor capability	Don Christensen	2023-07-18
11473685	Dual poppet pressure relief valve with vacuum adaptor capability	Don Christensen	2022-10-18
10818155	Child in vehicle detector	Carol Staninger, Andrew W. Oravecz, Richard Paul Spehr, Suzanne Spehr	2020-10-27
10615548	Safety power connector	Steven Pink, Andrew W. Oravecz, Richard Paul Spehr, Suzanne Spehr, Jason Mastroprieto	2020-04-07
10424182	Child in vehicle detector	Carol Staninger, Andrew W. Oravecz, Richard Paul Spehr, Suzanne Spehr	2019-09-24
9732868	High reliability pressure relief valve	John Bertoldi, Joseph Schimek, III	2017-08-15
8312608	System and method for toilet unit installation and removal	—	2012-11-20

John Head — 9 Patents

Issued Patents All Time

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