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Inventor

Jude O. Igwemezie

Inventor
Markham, CA

Overview

8→
Patents
1994–2021
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 8 as inventor

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

E01Bprimary
E01BPermanent way75%
B66FHoisting, lifting, hauling or pushing, not otherwise provided for, e.g. devices which apply a lifting or pushing force directly to the surface of a load13%
H02KDynamo-electric machines13%
PatentTitleYear
11,018,536Magnet motor with electromagnetic drive20217,854,032'Portable ramp for motor vehicles'20106,702,192'Rail retaining device'20046,431,463'Rail fastening devices'20026,325,300'Rail retaining device'20016,305,613'Rail fastening devices'20015,782,406'Rail tie plate clips and shoulders'19985,335,850'Attenuating pad for concrete railway ties'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994–2004Patents assigned to IGWEMEZIE JUDE O (2)· patent assignee history
1994–2021Based in Toronto, CA· patent location history
1998–2004Based in Markham, CA· patent location history
2010Patents assigned to SCEPTER CORP (1)· patent assignee history
2010Based in Brampton, CA· patent location history
2021Patents assigned to IGWEMEZIE JUDE (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
IGWEMEZIE JUDE Oself21994–2004
IGWEMEZIE JUDEself12021
SCEPTER CORP12010
Locations
LocationPatentsSpan
Markham, CA51998–2004
Toronto, CA21994–2021
Brampton, CA12010