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

David Lan — 4 Patents

COCongoleum: 2 patents #24 of 73Top 35%
MMMannington Mills: 2 patents #14 of 52Top 30%
Arundel, DE: #1 of 1 inventorsTop 100%
Delaware: #2,174 of 7,163 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
David Lan has been granted 4 US patents while listed as an inventor at Congoleum. The first was granted in 1995 and the most recent in April 2009. David Lan ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list David Lan in Arundel, DE, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7517422 Non-vinyl flooring and method for making same Risi Oshilaja, John Dunagan Pearson 2009-04-14
7175904 Non-vinyl flooring and method for making same Risi Oshilaja, John Dunagan Pearson 2007-02-13 $88,000
5494707 Resilient floor covering and method of making same C. David Wang, John M. Eby, Hao A. Chen, Richard Judd, Richard D. Joslin 1996-02-27
5405674 Resilient floor covering and method of making same C. David Wang, John M. Eby, Hao A. Chen, Richard Judd, Richard D. Joslin 1995-04-11