Inventor · disambiguated record
Robert N. Christiansen
Also filed as: CHRISTIANSEN ROBERT N
2 granted patents·1 pending application·190 citations·filing 2006–2014
72Inventor score
Top patents by PatentIndex Score
3 records- 0190US8635520B2Systems and methods for collaboratively annotating electronic documentsCHRISTIANSEN ROBERT N·Filed 2010·Granted Jan 21, 2014·75 cites·11 claims
- 0290US7779347B2Systems and methods for collaboratively annotating electronic documentsFOURTEEN40 INC·Filed 2006·Granted Aug 17, 2010·115 cites·42 claims
- 0359US2014310305A1Systems and methods for collaboratively annotating electronic documentsFOURTEEN40 INC·Filed 2014·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →