Inventor · disambiguated record
Douglas H. Hein
Also filed as: HEIN DOUGLAS · HEIN DOUGLAS H
7 granted patents·249 citations·filing 1997–2009
89Inventor score
Top patents by PatentIndex Score
7 records- 0190US6691033B1System and method for calibrating inter-star-tracker misalignments in a stellar inertial attitude determination systemHUGHES ELECTRONICS CORP·Filed 2000·Granted Feb 10, 2004·45 cites·27 claims
- 0284US8186626B1GPS based orbit determination of a spacecraft in the presence of thruster maneuversLIU KETAO·Filed 2009·Granted May 29, 2012·22 cites·23 claims
- 0383US6441776B1Method and apparatus for spacecraft payload pointing registrationHUGHES ELECTRONICS CORP·Filed 2000·Granted Aug 27, 2002·31 cites·44 claims
- 0483US6272432B1System and method for correcting star tracker low spatial frequency error in stellar-inertial attitude determination systemsHUGHES ELECTRONICS CORP·Filed 1999·Granted Aug 7, 2001·48 cites·14 claims
- 0566US6108594AAutonomous attitude acquisition for a stellar inertial attitude determination systemHUGHES ELECTRONICS CORP·Filed 1998·Granted Aug 22, 2000·53 cites·12 claims
- 0663US6047226AEnhanced stellar attitude determination systemHUGHES ELECTRONICS CORP·Filed 1997·Granted Apr 4, 2000·26 cites·11 claims
- 0747US6236939B1Method and apparatus for controlling spacecraft attitude with rotational star trackersHUGHES ELECTRONICS CORP·Filed 1999·Granted May 22, 2001·24 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →