Inventor · disambiguated record
David J. Schram
Also filed as: SCHRAM DAVID J
9 granted patents·1 pending application·666 citations·filing 2000–2013
91Inventor score
Top patents by PatentIndex Score
10 records- 0198US6341732B1Method and apparatus for maintaining control of liquid flow in a vibratory atomizing deviceJOHNSON & SON INC S C·Filed 2000·Granted Jan 29, 2002·186 cites·24 claims
- 0297US7350720B2Active material emitting deviceJOHNSON & SON INC S C·Filed 2005·Granted Apr 1, 2008·135 cites·15 claims
- 0396US6446880B1Replaceable reservoir for an atomizing apparatusJOHNSON & SON INC S C·Filed 2000·Granted Sep 10, 2002·118 cites·39 claims
- 0494US6450419B1Self contained liquid atomizer assemblyJOHNSON & SON INC S C·Filed 2000·Granted Sep 17, 2002·90 cites·31 claims
- 0593US6843430B2Low leakage liquid atomization deviceJOHNSON & SON INC S C·Filed 2002·Granted Jan 18, 2005·78 cites·55 claims
- 0683US6786427B2Liquid sealing arrangements for replaceable liquid reservoirsJOHNSON & SON INC S C·Filed 2002·Granted Sep 7, 2004·40 cites·22 claims
- 0760USD518883SActive material cartridgeJOHNSON & SON INC S C·Filed 2005·Granted Apr 11, 2006·12 cites·1 claims
- 0858US2015166210A1Accurate Product PlacementJOHNSON & SON INC S C·Filed 2013·Application pending·0 cites
- 0949USD666705SWickANDERSEN DANIEL A·Filed 2010·Granted Sep 4, 2012·6 cites·1 claims
- 1033USD674475SWickJOHNSON & SON INC S C·Filed 2012·Granted Jan 15, 2013·1 cites·1 claims
Join the waitlist — get patent alerts
Get an alert when David J. Schram 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 →