Inventor
John J. Alberts, III
Inventor
Cadillac, MI, US
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A47Lprimary
A47LDomestic washing or cleaning41%
B01DSeparation23%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests23%
LOC1514%
PatentTitleYear
6,565,637'Filter assembly for a vacuum cleaner'20036,432,180'Filter assembly for a vacuum cleaner'20026,312,508'Filter assembly for a vacuum cleaner'20016,290,761'Filter for vacuum cleaner'20016,162,287'Filter for vacuum cleaner'2000D0426355'Vacuum cleaner'2000D0423154'Vacuum cleaner'2000D0414305'Dolly for a vacuum cleaner'19995,924,642'Cleat having retractable retaining arms'1999D0376879'Housing design for a power nozzle'19965,537,710'Cleaning tool having split manifold'19965,123,141'Cleaning tool having airflow directing manifold for a vacuum cleaner system'19924,851,017'Radial cooling fan for vacuum cleaner motor'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989–2003Patents assigned to REXAIR INC (13)· patent assignee history
1989–1996Based in Marion, MI, US· patent location history
1999–2003Based in Cadillac, MI, US· patent location history
2000–2001Based in Stanwood, MI, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| REXAIR INC | 13 | 1989–2003 |
Locations
| Location | Patents | Span |
|---|---|---|
| Cadillac, MI, US | 7 | 1999–2003 |
| Marion, MI, US | 4 | 1989–1996 |
| Stanwood, MI, US | 2 | 2000–2001 |