Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Donald E. Kirkpatrick — 9 Patents

EAE.I. Du Pont De Nemours And: 5 patents #2,239 of 12,129Top 20%
Dow Global Technologies: 4 patents #1,176 of 4,534Top 30%
Lake Jackson, TX: #190 of 948 inventorsTop 25%
Texas: #16,980 of 125,132 inventorsTop 15%
Overall (All Time): #535,341 of 4,157,543Top 15%
9 Patents All Time
Donald E. Kirkpatrick has been granted 9 US patents. The first was granted in 1992 and the most recent in March 2020. Donald E. Kirkpatrick ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Donald E. Kirkpatrick in Lake Jackson, TX, US.

Patents per Year

Patents granted per year, 1992 to 2020Bar chart with a peak of 3 patents in 2019.peak 31992: 1 patents19921993: 1 patents19931997: 1 patents19972002: 2 patents20022019: 3 patents20192020: 1 patents2020

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10583637 Coextruded multilayer film with propylene-based polymer barrier layer Steven R. Jenkins, Patrick Chang Dong Lee, Joseph Dooley, Bernard E. Obi 2020-03-10
10336041 Coextruded multilayer film with propylene-based polymer and ethylene-based polymer Steven R. Jenkins, Patrick Chang Dong Lee, Joseph Dooley, Bernard E. Obi 2019-07-02
10265933 Microlayer component for films with improved gas/moisture carrier by controlling crystal lamellae orientation Steven R. Jenkins, Patrick Chang Dong Lee, Joseph Dooley, Bernard E. Obi 2019-04-23
10259154 Coextruded multilayer film with beta-propylene-based barrier layer Steven R. Jenkins, Patrick Chang Dong Lee, Joseph Dooley, Bernard E. Obi 2019-04-16
6376583 Process for preparing starch and epoxy-based thermoplastic polymer compositions Marie S. Winkler, Tricia S. Berry, David F. Pawlowski 2002-04-23 $15,500,000
6365079 Process for preparing starch and epoxy-based thermoplastic polymer compositions Marie S. Winkler, Tricia S. Berry 2002-04-02 $34,255,000
5700887 Preparation of branched polymers from vinyl aromatic monomer Jerry L. Hahnfeld, Timothy G. Bee, Lu H. Tung, William C. Pike 1997-12-23 $30,659,000
5236649 Extrudable thermoplastic particulates Mark J. Hall, Stephen R. Betso, Duane F. Foye, Kun S. Hyun, Steven R. Jenkins +2 more 1993-08-17 $8,785,000
5115029 Extrudable polymeric composition James A. Stevenson, Kun S. Hyun 1992-05-19 $7,221,000