Inventor · disambiguated record
Hans-Peter Letschert
Also filed as: LETSCHERT HANS-PETER
11 granted patents·97 citations·filing 1993–2014
90Inventor score
Top patents by PatentIndex Score
11 records- 0184US9187617B1Nickel-free green pigmentFERRO CORP·Filed 2014·Granted Nov 17, 2015·3 cites·22 claims
- 0268US5439660AOxonitrides of the formula LnTaOn2 with enhanced brightness and a process for their production and useCERDEC AG·Filed 1994·Granted Aug 8, 1995·15 cites·26 claims
- 0362US5766336AColored pigments based on oxide-nitrides, the preparation and use thereofCERDEC AG·Filed 1995·Granted Jun 16, 1998·17 cites·10 claims
- 0458US5376349AMethod of producing tantalum (V) nitrideDEGUSSA·Filed 1993·Granted Dec 27, 1994·8 cites·14 claims
- 0557US6235103B1Tantalum (V) nitride pigments, process for the production thereof and use thereofCERDEC AG·Filed 2000·Granted May 22, 2001·5 cites·12 claims
- 0656US6673473B2Display screen, in particular a color display screen, coating of the same and means for producing the coatingFERRO GMBH·Filed 2001·Granted Jan 6, 2004·4 cites·14 claims
- 0755US6379449B1Process for the production of yellow to red pigments based on nitrides and oxidenitrides2 DMC·Filed 2000·Granted Apr 30, 2002·3 cites·10 claims
- 0854US5569322AProcess for using tantalum (V) nitride as a pigment and the colored products produced therebyDEGUSSA·Filed 1994·Granted Oct 29, 1996·7 cites·13 claims
- 0953US6294009B1Tantalum (V) nitride pigment, process for producing it and its use2 DMC·Filed 1999·Granted Sep 25, 2001·13 cites·15 claims
- 1047US5693102AOxonitrides of the formula LnTaON2 with enhanced brightness and a process for their useCERDEC AG·Filed 1995·Granted Dec 2, 1997·9 cites·30 claims
- 1139US6004391APigments for the production of purple ceramic decoration, process for the production thereof and use thereofCERDEC AG·Filed 1997·Granted Dec 21, 1999·13 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →