Inventor · disambiguated record
Dolf Landheer
Also filed as: LANDHEER DOLF
8 granted patents·1 pending application·134 citations·filing 1979–2004
88Inventor score
Files withDELPHAX SYSTEMS3CA NAT RESEARCH COUNCIL2MACZUSZENKO ANDRZEJ1MCCALLUM ROBERT S1PLASSCHAERT PAUL E1
Top patents by PatentIndex Score
9 records- 0181US4514781ACorona devicePLASSCHAERT PAUL E·Filed 1983·Granted Apr 30, 1985·29 cites·8 claims
- 0279US4619515AElectrostatic printing apparatus and methodDELPHAX SYSTEMS·Filed 1985·Granted Oct 28, 1986·22 cites·10 claims
- 0372US4679060AIonic print cartridge and printerMCCALLUM ROBERT S·Filed 1984·Granted Jul 7, 1987·22 cites·8 claims
- 0468US4516847AElectrostatic printing apparatus and methodDELPHAX SYSTEMS·Filed 1982·Granted May 14, 1985·13 cites·6 claims
- 0567US6700171B2Gate dielectricCA NAT RESEARCH COUNCIL·Filed 2001·Granted Mar 2, 2004·15 cites·32 claims
- 0665US4254424AElectrostatic recording apparatusXEROX CORP·Filed 1979·Granted Mar 3, 1981·12 cites·10 claims
- 0756US4745421AIonic print cartridge and printerDELPHAX SYSTEMS·Filed 1987·Granted May 17, 1988·10 cites·3 claims
- 0855US4595277AToner supply control systemMACZUSZENKO ANDRZEJ·Filed 1984·Granted Jun 17, 1986·11 cites·6 claims
- 0933US2004156164A1Novel gate dielectricCA NAT RESEARCH COUNCIL·Filed 2004·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Dolf Landheer 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 →