Inventor
Glenn M. Campbell, Sr.
Inventor
Plymouth, MN, US
Overview
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B04Bprimary
B04BCentrifuges13%
B01LChemical or physical laboratory apparatus for general use9%
B61DBody details or kinds of railway vehicles9%
G01NInvestigating or analysing materials by determining their chemical or physical properties9%
A61GTransport, personal conveyances, or accommodation specially adapted for patients or disabled persons6%
B60NSeats specially adapted for vehicles6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
B05BSpraying apparatus3%
B08BCleaning in general3%
B25HWorkshop equipment, e.g. for marking-out work3%
PatentTitleYear
7,340,324'Mixing and pouring apparatus and vessel therefor'20087,018,587'Mixing and pouring apparatus and vessel therefor'20066,878,340'Mixing and pouring apparatus and vessel therefor'20056,726,271'Window structure for mass transit vehicle'20046,695,759'Centrifuge buckets'20046,663,553'Rotor locator for a centrifuge'20036,659,932'Method for locating a centrifuge body'20036,491,615'Rotor locator'20026,416,116'Interior structure of a mass transit vehicle'20026,397,965'Engine configuration for mass transit vehicle'20026,375,249'Body structure of a mass transit vehicle'20026,343,908'Passenger entrance ramp for mass transit vehicle'20026,340,202'Window structure for mass transit vehicle'20025,391,041'Hydraulically operated bus ramp mechanism'19955,337,654'Portable oven air circulator'19945,040,950'Power washing apparatus'1991D0314649'Power washer wand'1991D0314258'Power washer'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991–1994Patents assigned to NORTHLAND ALUMINUM PROD (2)· patent assignee history
1991Patents assigned to NORTHLAND ALUMINUM PRODUCTS INC (2)· patent assignee history
1991–2004Based in Plymouth, MN, US· patent location history
1995Patents assigned to NEW FLYER IND LIMITED (1)· patent assignee history
1995–2004Based in Winnipeg, CA· patent location history
2002–2006Patents assigned to GENTRA SYSTEMS INC (6)· patent assignee history
2002–2004Patents assigned to NEW FLYER IND LTD (6)· patent assignee history
2005–2008Based in Maple Grove, MN, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GENTRA SYSTEMS INC | 6 | 2002–2006 |
| NEW FLYER IND LTD | 6 | 2002–2004 |
| NORTHLAND ALUMINUM PROD | 2 | 1991–1994 |
| NORTHLAND ALUMINUM PRODUCTS INC | 2 | 1991 |
| NEW FLYER IND LIMITED | 1 | 1995 |
Locations
| Location | Patents | Span |
|---|---|---|
| Plymouth, Minnesota, US | 8 | 1991–2004 |
| Winnipeg, CA | 7 | 1995–2004 |
| Maple Grove, Minnesota, US | 3 | 2005–2008 |