Inventor · disambiguated record
Mark Alan Johnstone
Also filed as: JOHNSTONE MARK ALAN
4 granted patents·29 citations·filing 2000–2004
75Inventor score
Top patents by PatentIndex Score
4 records- 0171US6781146B2Annealed tunneling emitterHEWLETT PACKARD DEVELOPMENT CO·Filed 2001·Granted Aug 24, 2004·8 cites·37 claims
- 0269US6785956B2Method of fabricating a fluid jet printheadHEWLETT PACKARD DEVELOPMENT CO·Filed 2002·Granted Sep 7, 2004·13 cites·10 claims
- 0368US7044823B2Method of making a tunneling emitterHEWLETT PACKARD DEVELOPMENT CO·Filed 2004·Granted May 16, 2006·6 cites·17 claims
- 0440US6457814B1Fluid-jet printhead and method of fabricating a fluid-jet printheadHEWLETT PACKARD CO·Filed 2000·Granted Oct 1, 2002·2 cites·15 claims
Join the waitlist — get patent alerts
Get an alert when Mark Alan Johnstone 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 →