The Manitoba Hydro-Electric Board

Calculating rank

USPTO Granted Patents = 2

CIPO Patents = 3

Forward Citations = 38

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3 inventors (with patents filed for the assignee):

Ireneusz Witkowski (1 out of 5 patents)

Caron Hopfner (1 out of 1 patent)

Ernst H Wiebe (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 6988816 - Energy efficient lighting apparatus and use thereof (2006-01-24),

2. 6770810 - High voltage electrical handling device enclosure (2004-08-03),

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USPTO Data Jan 1 1976 - Nov 3 2026

2 Patents

#74 in Winnipeg

#6,033 in Canada

Winnipeg, Canada

The Manitoba Hydro-Electric Board

Forward Citations = 38

3 inventors:

Ireneusz Witkowski (1 out of 5 patents)

Caron Hopfner (1 out of 1 patent)

Ernst H Wiebe (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: The Manitoba Hydro-Electric Board. Retrieved from https://idiyas.com/company/manitoba-hydro-electric-board

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

3 patents (CIPO):

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]