Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
SP

Stephen Proulx — 28 Patents

MIMillipore: 14 patents #6 of 440Top 2%
EMEmd Millipore: 11 patents #25 of 345Top 8%
ENEntegris: 1 patents #376 of 643Top 60%
Boxborough, MA: #23 of 320 inventorsTop 8%
Massachusetts: #3,464 of 88,656 inventorsTop 4%
Overall (All Time): #135,718 of 4,157,543Top 4%
28 Patents All Time

Issued Patents All Time

Showing 26–28 of 28 patents

Patent #TitleCo-InventorsDate
5798049 Filter cartridge construction and process for filtering particle-containing paint compositions Paul Cook, Michael L. Heise 1998-08-25
5736044 Filter cartridge construction and process for filtering particle-containing paint compositions Paul Cook, Michael L. Heise 1998-04-07
5477155 Current flow integrity test John Burns, Scott Emory, Richard W. Gray, Frank Lentine 1995-12-19