Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Luigi Silveri — 4 Patents

BEBeloit: 4 patents #44 of 198Top 25%
Lenox, MA: #21 of 55 inventorsTop 40%
Massachusetts: #27,912 of 88,656 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Luigi Silveri has been granted 4 US patents while listed as an inventor at Beloit. The first was granted in 1985 and the most recent in July 1996. Luigi Silveri ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Luigi Silveri in Lenox, MA, US.

Patents per Year

Patents granted per year, 1985 to 1996Bar chart with a peak of 1 patents in 1985.peak 11985: 1 patents19851989: 1 patents19891990: 1 patents19901996: 1 patents1996

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5538632 Multiple filter dynamic washer William A. Gero, Goda Rangamannar 1996-07-23
4891099 Apparatus for secondary fibre processing Stavros Paraskevas 1990-01-02 $2,787,000
4812205 Process for secondary fibre processing Stavros Paraskevas 1989-03-14 $4,047,000
4548673 Method and apparatus for deinking Ashok K. Nanda, Michael A. McCool 1985-10-22 $547,000