Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Andrea Assmann — 4 Patents

Basf Se: 3 patents #4,656 of 13,826Top 35%
BGBasf Construction Solutions Gmbh: 1 patents #7 of 23Top 35%
Unterreit, DE: #2 of 4 inventorsTop 50%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Andrea Assmann has been granted 4 US patents while listed as an inventor at Basf Se. The first was granted in 2012 and the most recent in June 2019. Andrea Assmann ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Andrea Assmann in Unterreit, DE.

Patents per Year

Patents granted per year, 2012 to 2019Bar chart with a peak of 1 patents in 2012.peak 12012: 1 patents20122014: 1 patents20142015: 1 patents20152019: 1 patents2019

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
10308858 Biodegradable anti-accretion additive for water-based drilling fluids Roland Reichenbach-Klinke, Jutta Karin Langlotz 2019-06-04
9051503 Use of hydrophobically associated copolymer as an additive in specific oilfield applications Roland Reichenbach-Klinke, Oscar Lafuente Cerda, Björn Langlotz 2015-06-09
8802748 Graft polymer mixture Roland Reichenbach-Klinke 2014-08-12
8148304 Copolymer based on a sulfonic acid-containing compound Christian Spindler, Uwe Huber 2012-04-03