Inventor · disambiguated record
Walter Topfer
Also filed as: TOEPFER WALTER
4 granted patents·91 citations·filing 1989–1992
79Inventor score
Files withPORSCHE AG4
Top patents by PatentIndex Score
4 records- 0176US4922882ACrankcase ventilation systemPORSCHE AG·Filed 1989·Granted May 8, 1990·33 cites·10 claims
- 0262US5623900AInternal-combustion engine comprising an intake systemPORSCHE AG·Filed 1992·Granted Apr 29, 1997·22 cites·9 claims
- 0352US5537965AIntake system for an internal-combustion enginePORSCHE AG·Filed 1992·Granted Jul 23, 1996·22 cites·11 claims
- 0449US5603295AInternal-combustion engine comprising an intake systemPORSCHE AG·Filed 1992·Granted Feb 18, 1997·14 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →