Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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William E. Kelly — 12 Patents

CECereplast: 3 patents #2 of 5Top 40%
AMAmoco: 2 patents #385 of 1,251Top 35%
TLTate & Lyle Public Limited: 2 patents #14 of 73Top 20%
USUSDA: 2 patents #601 of 2,828Top 25%
EAE.I. Du Pont De Nemours And: 1 patents #8,167 of 12,129Top 70%
Grand Rapids, MI: #151 of 1,824 inventorsTop 9%
Michigan: #7,722 of 86,293 inventorsTop 9%
Overall (All Time): #396,045 of 4,157,543Top 10%
12 Patents All Time
William E. Kelly has been granted 12 US patents while listed as an inventor at Cereplast. The first was granted in 1992 and the most recent in October 2019. William E. Kelly ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list William E. Kelly in Grand Rapids, MI, US.

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10435557 High heat deflection temperature polylactic acids with tunable flexibility and toughness William J. Orts, Lennard Torres, Allison Flynn 2019-10-08
10323144 Biodegrable cardstock composition William J. Orts, Allison Flynn, Lennard Torres 2019-06-18
8389614 Biodegradable nanopolymer compositions and biodegradable articles made thereof Frederic Scheer 2013-03-05
8222320 High heat resistant polymer compositions having poly(lactic acid) Frederic Scheer 2012-07-17 $273,000
7868101 Environmentally degradable polymeric compounds, their preparation and use as hot melt adhesive David Neal Lewis, Gerrit Schutte, Henk Westerhof, Jane Janssen 2011-01-11
7465770 Environmentally degradable polymeric compounds their preparation and use as hot melt adhesive David Neal Lewis, Gerrit Schutte, Henk Westerhof, Jane Janssen 2008-12-16
7393590 Biodegradable poly(lactic acid) polymer composition and films, coatings and products comprising Biodegradable poly(lactic acid) polymer compositions Frederic Scheer 2008-07-01
7138439 Biodegradable compounds including poly(lactic acid) polymer compositions and products Frederic Scheer 2006-11-21
5916958 Flame retardant thermoplastic compositions Lloyd Joseph Male, Gregory C. Plithides 1999-06-29
5498650 Poly(lactic acid) composition having improved physical properties Edmund Arthur Flexman 1996-03-12
5382617 Stabilization of poly(hydroxy acid)s derived from lactic or glycolic acid Richard L. Baird 1995-01-17 $16,120,000
5151462 Flame retardant blends of polysulfone and polyalkylene phthalate Mohammad Jamal El-Hibri, Gregory S. Jack, Sanjay Patel 1992-09-29 $24,777,000