Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DC

David R Code — 3 Patents

IPInternational Paper: 3 patents #150 of 935Top 20%
Gibsons, CA: #5 of 23 inventorsTop 25%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
David R Code has been granted 3 US patents while listed as an inventor at International Paper. The first was granted in 2008 and the most recent in July 2010. David R Code ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list David R Code in Gibsons, BC, CA.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7749354 Digester wash extraction by individual screen flow control Dean K Lawrence, Wayne Hill, Stanislaus Leo Ludwig 2010-07-06 $14,374,000
7658820 Digester wash extraction by individual screen flow control Dean K Lawrence, Wayne Hill, Stanislaus Leo Ludwig 2010-02-09 $136,556,000
7452444 Digester wash extraction by individual screen flow control Dean K Lawrence, Wayne Hill, Stanislaus Leo Ludwig 2008-11-18 $16,169,000