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USPTO Patent Rankings Data through Sept 30, 2025
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Theodore B. Eyrick — 1 Patent

CHChemetron: 1 patents #5 of 15Top 35%
Reading, MA: #318 of 473 inventorsTop 70%
Massachusetts: #56,664 of 88,656 inventorsTop 65%
Overall (All Time): #4,103,925 of 4,157,543Top 100%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4182599 Volume-rate respirator system and method Allen C. Brown, Neil R. Hattes 1980-01-08