Inventor
Roy O. Erickson, Jr.
Inventor
Cadillac, MI, US
Overview
Patents· 19 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A47Lprimary
A47LDomestic washing or cleaning50%
B01DSeparation15%
LOC1512%
F04DNon-positive-displacement pumps8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof4%
Y10TTechnical subjects covered by former us classification4%
PatentTitleYear
6,290,761'Filter for vacuum cleaner'20016,162,287'Filter for vacuum cleaner'2000D0426355'Vacuum cleaner'2000D0423154'Vacuum cleaner'2000D0414305'Dolly for a vacuum cleaner'1999D0376879'Housing design for a power nozzle'19965,537,710'Cleaning tool having split manifold'19965,280,666'Squeegee apparatus for a vacuum cleaner system'19945,123,141'Cleaning tool having airflow directing manifold for a vacuum cleaner system'19925,096,475'Separator for a vacuum cleaner system'19925,090,974'Separator for a vacuum cleaner system'19925,030,257'Separator for a vacuum cleaner system'19914,851,017'Radial cooling fan for vacuum cleaner motor'19894,824,333'Air blower assembly for vacuum cleaners'1989D0296945'Vacuum cleaner top'19884,735,555'Air blower assembly for vacuum cleaner'19884,693,734'Vacuum cleaner construction'19874,640,697'Vacuum cleaner construction'19874,483,508'Gradient power valve assembly'1984Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984Patents assigned to COLT IND OPERATING CORP (1)· patent assignee history
1984Based in Utica, MI, US· patent location history
1987–2001Patents assigned to REXAIR INC (18)· patent assignee history
1987–2001Based in Cadillac, MI, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| REXAIR INC | 18 | 1987–2001 |
| COLT IND OPERATING CORP | 1 | 1984 |
Locations
| Location | Patents | Span |
|---|---|---|
| Cadillac, MI, US | 18 | 1987–2001 |
| Utica, MI, US | 1 | 1984 |