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

Doris Ehrt — 2 Patents

SASchott Ag: 2 patents #437 of 1,181Top 40%
Jena, DE: #559 of 1,492 inventorsTop 40%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Doris Ehrt has been granted 2 US patents while listed as an inventor at Schott Ag. The first was granted in 2009 and the most recent in October 2011. Doris Ehrt ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Doris Ehrt in Jena, DE.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8039410 Core glass in the alkali-zinc-silicate glass system for an fiber-optic light guide and fiber-optic light guide made with said core glass Uwe Kolberg, Axel Curdt, Monika Gierke, Magdalena Winkler-Trudewig, Guenther Kron 2011-10-18
7521670 Standard for referencing luminescence signals Axel Engel, Rainer Haspel, Ute Resch-Genger, Katrin Hoffmann, Uwe Kolberg +2 more 2009-04-21