Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert J. Mandle — 4 Patents

IIIonics, Incorporated: 4 patents #13 of 71Top 20%
Lexington, MA: #959 of 2,299 inventorsTop 45%
Massachusetts: #27,912 of 88,656 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Robert J. Mandle has been granted 4 US patents while listed as an inventor at Ionics, Incorporated. The first was granted in 1986 and the most recent in July 1987. Robert J. Mandle ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Robert J. Mandle in Lexington, MA, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
4678553 Renaturing reversibly denatured polypeptides and proteins by electrodialysis of solutions thereof in denaturants Wayne A. McRae 1987-07-07 $451,000
4673483 Isoelectric focusing apparatus 1987-06-16 $438,000
4661224 Process and apparatus for electrically desorbing components selectively sorbed on an electrolytically conducting barrier Arthur L. Goldstein, Edgar Haber 1987-04-28 $431,000
4584075 Process and apparatus for electrically desorbing components selectively sorbed on an electrolytically conducting barrier Arthur L. Goldstein, Edgar Haber 1986-04-22 $603,000