Joseph Sferrazza — 2 Patents at Com Dev

Joseph Sferrazza has been granted 2 US patents while listed as an inventor at Com Dev. All of these patents were granted in 1987. Joseph Sferrazza ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Joseph Sferrazza in Hamilton, ON, CA.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4675630	Triple mode dielectric loaded bandpass filter	Wai-Cheung Tang, David Siu, Bruce C. Beggs	1987-06-23
4652843	Planar dual-mode cavity filters including dielectric resonators	Wai-Cheung Tang, David Siu, Bruce C. Beggs	1987-03-24

Joseph Sferrazza — 2 Patents

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