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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David Lefgren — 1 Patent

THThiokol: 1 patents #121 of 275Top 45%
Garland, UT: #4 of 10 inventorsTop 40%
Utah: #11,387 of 19,430 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
David Lefgren has been granted 1 US patent while listed as an inventor at Thiokol. All of these patents were granted in 1993. David Lefgren ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list David Lefgren in Garland, UT, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5273785 Methods and compositions for bonding propellants within rocket motors James Wallace Sinclair, Kyung-Jip Min 1993-12-28 $3,621,000