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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
LS

Len D. Spaulding — 3 Patents

Newark, DE: #547 of 1,550 inventorsTop 40%
Delaware: #2,598 of 7,163 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Len D. Spaulding has been granted 3 US patents. The first was granted in 2002 and the most recent in May 2012. Len D. Spaulding ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Len D. Spaulding in Newark, DE, US.

Patents per Year

Patents granted per year, 2002 to 2012Bar chart with a peak of 1 patents in 2002.peak 12002: 1 patents20022006: 1 patents20062012: 1 patents2012

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
8187561 Processes and systems for recovering catalyst promoter from catalyst substrates Michael Herman, Michael J. Delsignore, James E. Phillips 2012-05-29
7129170 Method for depositing and etching ruthenium layers James E. Phillips 2006-10-31
6458183 Method for purifying ruthenium and related processes James E. Phillips 2002-10-01