Inventor · disambiguated record
Ulrich Birkholz
Also filed as: BIRKHOLZ ULRICH
6 granted patents·234 citations·filing 1986–2001
85Inventor score
Top patents by PatentIndex Score
6 records- 0189US4739512AHearing aidSIEMENS AG·Filed 1986·Granted Apr 19, 1988·136 cites·19 claims
- 0271US4834927AMethod and apparatus for producing an ear impressionSIEMENS AG·Filed 1987·Granted May 30, 1989·52 cites·10 claims
- 0361US6672869B2Plug connection for jaw stump modelsDEGUSSA·Filed 2001·Granted Jan 6, 2004·16 cites·37 claims
- 0439US4840249AApparatus for srewing a cover onto a screw neck of a hearing aidSIEMENS AG·Filed 1987·Granted Jun 20, 1989·13 cites·8 claims
- 0539US4828777AMethod and apparatus for the manufacture of an otoplastic shellSIEMENS AG·Filed 1987·Granted May 9, 1989·15 cites·12 claims
- 0633US5833462APrecision attachments for dental technology capable of being cast onDEGUSSA·Filed 1996·Granted Nov 10, 1998·2 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →