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Inventor

Douglas William Rummer

Inventor
Waterford, OH, US

Overview

5→
Patents
2013–2018
Patent span
Electricity
Primary field (CPC H)

Patents· 5 as inventor

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

H01Fprimary
H01FMagnets43%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form29%
Y10TTechnical subjects covered by former us classification29%
PatentTitleYear
9,931,811Adhering systems20189,796,155'Adhering systems'20179,455,078'Non-linear multi-pole magnetization of flexible magnetic sheets'20169,208,934'Material magnetizer systems'20158,410,880'Material magnetizer systems'2013

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2013–2018Patents assigned to MAGNUM MAGNETICS CORP (5)· patent assignee history
2013–2018Patents assigned to BALL SR BERNARD F (2)· patent assignee history
2013–2018Patents assigned to RUMMER DOUGLAS WILLIAM (2)· patent assignee history
2013Patents assigned to STOUT JOSEPH B (1)· patent assignee history
2013–2018Based in Waterford, OH, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MAGNUM MAGNETICS CORP52013–2018
BALL SR BERNARD F22013–2018
RUMMER DOUGLAS WILLIAMself22013–2018
STOUT JOSEPH B12013
Locations
LocationPatentsSpan
Waterford, OH, US52013–2018