Inventor · disambiguated record
Ralf Schweinfurth
Also filed as: SCHWEINFURTH RALF
1 granted patent·8 pending applications·0 citations·filing 2003–2020
12Inventor score
Top patents by PatentIndex Score
9 records- 0159US11746240B2Interference pigmentsMERCK PATENT GMBH·Filed 2020·Granted Sep 5, 2023·0 cites·18 claims
- 0254US2008014321A1Colouring Using Pearlescent Pigments in the Food and Pharmaceutical SectorsSCHWEINFURTH RALF·Filed 2007·Application pending·0 cites
- 0345US2011129506A1Colouring using pearlescent pigments in the food and pharmaceutical sectorsSCHWEINFURTH RALF·Filed 2010·Application pending·0 cites
- 0439US2019239544A1Coloring of wafers and similar baked goodsMERCK PATENT GMBH·Filed 2018·Application pending·0 cites
- 0534US2018220685A1Preparation and colouring of pulverulent foodsMERCK PATENT GMBH·Filed 2018·Application pending·0 cites
- 0631US2008274198A1Use of multilayered pigments in the food and pharmaceuticals sectorSCHWEINFURTH RALF·Filed 2008·Application pending·0 cites
- 0731US2005147724A1Use of multi-layer pigments in the food and pharmaceutical industryFiled 2003·Application pending·0 cites
- 0829US2018223103A1Colouring of surfacesMERCK PATENT GMBH·Filed 2018·Application pending·0 cites
- 0922US2007298149A1Animal Feedstuff Dyeing and Animal DrugsSCHWEINFURTH RALF·Filed 2005·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Ralf Schweinfurth files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →