Spell; David M.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Spell; David M..The latest application filed is for "system and method to restrict device access in vehicles".

Company Profile

7.5.8

Spell; David M. - Kokomo IN

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Dead-reckoning guidance system and method with cardinal-direction based coordinate-corrections Grant 11,359,920 - Knutson , et al. June 14, 2	2022-06-14
System and method to restrict device access in vehicles Grant 11,157,758 - Spell , et al. October 26, 2	2021-10-26
System And Method To Restrict Device Access In Vehicles App 20210271909 - Spell; David M. ; et al.	2021-09-02
Process and system for assisting vehicle operations with safe passing Grant 11,107,357 - Knutson , et al. August 31, 2	2021-08-31
System And Method For Determining Vehicle Location App 20210247524 - KNUTSON; Eric P. ; et al.	2021-08-12
Vehicle Heading Information Based On Single Satellite Detection App 20210231439 - Knutson; Eric P. ; et al.	2021-07-29
System and method for determining vehicle location Grant 11,022,698 - Knutson , et al. June 1, 2	2021-06-01
Process And System For Assisting Vehicle Operations With Safe Passing App 20210158706 - Knutson; Eric P. ; et al.	2021-05-27
System And Method For Position Fix Estimation Using Two Or More Antennas App 20210096266 - Knutson; Eric P. ; et al.	2021-04-01
Dead-reckoning Guidance System and Method with Cardinal-direction Based Coordinate-corrections App 20210041238 - Knutson; Eric P. ; et al.	2021-02-11
Navigation Device App 20210018931 - Knutson; Eric P. ; et al.	2021-01-21
Dead-reckoning guidance system and method with cardinal-direction based coordinate-corrections Grant 10,845,197 - Knutson , et al. November 24, 2	2020-11-24
Dead-reckoning Guidance System And Method With Cardinal-direction Based Coordinate-corrections App 20200166344 - Knutson; Eric P. ; et al.	2020-05-28

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