Len D. Spaulding — 3 Patents | Patent Leaderboard

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.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
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

Len D. Spaulding — 3 Patents

Issued Patents All Time

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