Inventor
Mervin E. Wright
Inventor
Apple Valley, MN, US
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Dprimary
B01DSeparation55%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests18%
G11BInformation storage based on relative movement between record carrier and transducer9%
Y10TTechnical subjects covered by former us classification9%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general5%
Y02TClimate change mitigation technologies related to transportation5%
PatentTitleYear
6,168,681'Method of making a filter device'20015,935,284'Filter cartridge'19995,871,557'Mist collector cartridge'19995,869,009'Filter device'19995,454,858'Process of using mist collector cartridge'19955,415,676'Mist collector cartridge'19955,246,472'Apparatus for filtering engine exhaust'19934,615,804'High density pleat spacing and scoring tool and filter made therewith'19864,512,891'Pleated filter element with controlled expansibility and frame therefor'19854,452,619'Pleated filter element having integral pleat spacers'19844,304,580'Air cleaner with suspended cartridge'19814,151,095'Pleated fluid filter'1979Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1979–1999Patents assigned to DONALDSON CO INC (11)· patent assignee history
1979–2001Based in Apple Valley, MN, US· patent location history
2001Patents assigned to DONALDSON & COMPANY INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DONALDSON CO INC | 11 | 1979–1999 |
| DONALDSON & COMPANY INC | 1 | 2001 |
Locations
| Location | Patents | Span |
|---|---|---|
| Apple Valley, Minnesota, US | 12 | 1979–2001 |