13 Utility and 55 Design Patents
#2 in Willoughby, OH
#76 in Ohio
#1,054 in US
#1,738 in the World
rank by design patentsForward Citations = 766
Company Filing History:

Spectrum Diversified Designs, LLC
Techtronic Floor Care Technology Limited
4. 5 out of 234
Royal Appliance Mfg., Co.
5. 2 out of 212

where one patent can have more than one assignee
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