Inventor

James E. Retterath

Inventor

Excelsior, MN, US

Overview

30→

Patents

1987–2021

Patent span

Physics

Primary field (CPC G)

Patents· 30 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G01Nprimary

G01NInvestigating or analysing materials by determining their chemical or physical properties22%

G01SRadio direction-finding17%

G06VImage or video recognition or understanding16%

G08GTraffic control systems13%

G06TImage data processing or generation, in general8%

G02BOptical elements, systems or apparatus7%

H04NPictorial communication, e.g. television6%

G06KGraphical data reading3%

G01FMeasuring volume, volume flow, mass flow or liquid level2%

A22BSlaughtering1%

PatentTitleYear

11,001,979Methods and apparatus for ultrawide entrance angle reflective articles for use with autonomous vehicle machine vision systems2021 10,873,738Multi-frame range gating for lighting-invariant depth maps for in-motion applications and attenuating environments2020 10,623,716Object identification and material assessment using optical profiles2020 10,585,175Methods and apparatus for object detection and identification in a multiple detector lidar array2020 10,382,742Methods and apparatus for a lighting-invariant image sensor for automated object detection and vision systems2019 10,298,908Vehicle display system for low visibility objects and adverse environmental conditions2019 10,036,801Methods and apparatus for increased precision and improved range in a multiple detector LiDAR array2018 9,989,457System and assessment of reflective objects along a roadway2018 9,866,816'Methods and apparatus for an active pulsed 4D camera for image acquisition and analysis'2018 9,671,328'System and assessment of reflective objects along a roadway'2017 9,360,554'Methods and apparatus for object detection and identification in a multiple detector lidar array'2016 9,335,255'System and assessment of reflective objects along a roadway'2016 8,660,311'System for assessment reflective objects along a roadway'2014 7,995,796'System for road sign sheeting classification'2011 7,515,736'System for road sign sheeting classification'2009 7,411,681'System for automated determination of retroreflectivity of road signs and other reflective objects'2008 7,173,707'System for automated determination of retroreflectivity of road signs and other reflective objects'2007 7,092,548'Method and apparatus for identifying objects depicted in a videostream'2006 7,060,981'System for automated detection of embedded objects'2006 7,043,057'System for automated determination of retroreflectivity of road signs and other reflective objects'2006 6,891,960'System for road sign sheeting classification'2005 6,829,927'System for content analysis of comestible products using volumetric determination'2004 6,674,878'System for automated determination of retroreflectivity of road signs and other reflective objects'2004 6,625,315'Method and apparatus for identifying objects depicted in a videostream'2003 6,609,423'System for content analysis of comestible products using volumetric determination'2003 6,453,056'Method and apparatus for generating a database of road sign images and positions'2002 6,449,384'Method and apparatus for rapidly determining whether a digitized image frame contains an object of interest'2002 6,363,161'System for automatically generating database of objects of interest by analysis of images recorded by moving vehicle'2002 6,266,442'Method and apparatus for identifying objects depicted in a videostream'2001 4,663,756'Multiple-use priority network'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987Based in Eagan, MN, US· patent location history

2001–2016Patents assigned to FACET TECHNOLOGY CORP (18)· patent assignee history

2001–2021Based in Excelsior, MN, US· patent location history

2005Patents assigned to FACET TECHNOLOGY (1)· patent assignee history

2017–2018Patents assigned to FACET TECH CORP (2)· patent assignee history

2018–2020Patents assigned to 4D INTELLECTUAL PROPERTIES LLC (5)· patent assignee history

2018–2020Patents assigned to BIG SKY FINANCIAL CORP (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
FACET TECHNOLOGY CORP	18	2001–2016
4D INTELLECTUAL PROPERTIES LLC	5	2018–2020
BIG SKY FINANCIAL CORP	2	2018–2020
FACET TECH CORP	2	2017–2018
FACET TECHNOLOGY	1	2005

Locations

Location	Patents	Span
Excelsior, Minnesota, US	29	2001–2021
Eagan, Minnesota, US	1	1987