Leonard E. Duello has been granted 5 US patents. The first was granted in 1990 and the most recent in September 2021. Leonard E. Duello ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Leonard E. Duello in Woodstock, GA, US.
Patents per Year Patents granted per year, 1990 to 2021 Bar chart with a peak of 2 patents in 1990. peak 2 1990: 2 patents 1990 1992: 1 patents 1992 2014: 1 patents 2014 2021: 1 patents 2021
Issued Patents All Time
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Showing 1–5 of 5 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
11118290 Structured, dispersible nonwoven web comprised of hydroentangled individualized bast fibers Alan Edward Wright , Micheal S. Lerch , Joseph H. Miller , Dean J. Baumgartner , Greg A. Wendt +5 more 2021-09-14
8668758 Trackified air filtration media and a self-supporting filter having improved stiffness and foldability Thomas D. Hawkins , Christopher B. Peart , Nathaniel Nance 2014-03-11
5151321 Method of making conductive, water and/or alcohol repellent nonwoven fabric and resulting product William G. Reeves , Michael D. Powers , Michael P. Mathis 1992-09-29
$44,910,000
4903837 Apparatus for dispensing and accounting absorbent surgical articles — 1990-02-27
$4,080,000
4892784 Surface treatment for inhibiting thermal oxidation of polypropylene fabrics William G. Reeves , Robert J. Roeder 1990-01-09
$3,528,000