Joseph A. Holroyd — 1 Patent at Dynatech

Joseph A. Holroyd has been granted 1 US patent while listed as an inventor at Dynatech. All of these patents were granted in 1980. Joseph A. Holroyd ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Joseph A. Holroyd in Westford, MA, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
4197329	Blood filming process	Robert K. Mitchiner	1980-04-08	$236,000

Joseph A. Holroyd — 1 Patent

Issued Patents All Time

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