Inventor · disambiguated record
Douglas Christiansen
Also filed as: CHRISTIANSEN DOUGLAS · CHRISTIANSEN DOUGLAS J
6 granted patents·2 pending applications·15 citations·filing 2001–2023
74Inventor score
Top patents by PatentIndex Score
8 records- 0184US8602394B2Winching apparatusCHRISTIANSEN DOUGLAS J·Filed 2011·Granted Dec 10, 2013·11 cites·22 claims
- 0278US11973902B2System for cloud-enabling a premise PBXINTERMEDIA NET INC·Filed 2023·Granted Apr 30, 2024·1 cites·20 claims
- 0374US11622046B2System for cloud-enabling a premise PBXINTERMEDIA NET INC·Filed 2021·Granted Apr 4, 2023·1 cites·20 claims
- 0450US8024867B2Tape measure calibratorCHRISTIANSEN DOUGLAS J·Filed 2009·Granted Sep 27, 2011·2 cites·13 claims
- 0546US2005117733A1Communication management system for managing multiple incoming communications, such as from one graphical user interfaceFiled 2004·Application pending·0 cites
- 0644US9568308B2Multi-instrument calibration standardCHRISTIANSEN DOUGLAS J·Filed 2013·Granted Feb 14, 2017·0 cites·20 claims
- 0742US8438745B2Pass/fail tape measure calibratorCHRISTIANSEN DOUGLAS J·Filed 2011·Granted May 14, 2013·0 cites·18 claims
- 0842US2002073207A1Communication management system for managing multiple incoming communications, such as from one graphical user interfaceFiled 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →