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

Dirk Hammel — 1 Patent

IBM: 1 patents #44,878 of 70,183Top 65%
Worms, DE: #190 of 331 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Dirk Hammel has been granted 1 US patent while listed as an inventor at IBM. All of these patents were granted in 2003. Dirk Hammel ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Dirk Hammel in Worms, DE.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6585906 Method for recycling a disk having a layered structure on a glass substrate Holger Roehl, Theo Schmitz, Johannes Windeln 2003-07-01 $13,647,000