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Joseph A. Holroyd

DYDynatech: 1 patents #1 of 15Top 7%
Westford, MA: #699 of 1,013 inventorsTop 70%
Massachusetts: #56,664 of 88,656 inventorsTop 65%
Overall (All Time): #4,109,712 of 4,157,543Top 100%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4197329 Blood filming process Robert K. Mitchiner 1980-04-08

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