Inventor
Walter C. Mrotz, III
Inventor
North Muskegon, MI, US
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A47Cprimary
A47CChairs45%
Y10TTechnical subjects covered by former us classification18%
A47BTables9%
E04BGeneral building constructions9%
LOC259%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%
PatentTitleYear
5,921,040'Panel frame assembly'1999D0405544'Trim piece for an office furniture system'19995,568,775'Articulating table connection'19965,015,038'Ergonomic seat and back structure for a chair'19914,818,019'Tilt control mechanism, particularly for knee-tilt chair'19894,796,950'Tilt mechanism, particularly for knee-tilt chair'19894,598,892'Mechanical chair-height control mechanism'19864,390,210'Blind connecting structure for inner and outer shells of chair back'1983Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1983Patents assigned to HAWORTH MFG INC (1)· patent assignee history
1983–1986Based in Comstock Park, MI, US· patent location history
1986–1989Patents assigned to HAWORTH INC (3)· patent assignee history
1989–1999Based in North Muskegon, MI, US· patent location history
1991Patents assigned to SHAW WALKER CO (1)· patent assignee history
1996–1999Patents assigned to KNOLL INC (3)· patent assignee history
1999Based in Muskegon, MI, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HAWORTH INC | 3 | 1986–1989 |
| KNOLL INC | 3 | 1996–1999 |
| HAWORTH MFG INC | 1 | 1983 |
| SHAW WALKER CO | 1 | 1991 |
Locations
| Location | Patents | Span |
|---|---|---|
| North Muskegon, MI, US | 5 | 1989–1999 |
| Comstock Park, MI, US | 2 | 1983–1986 |
| Muskegon, MI, US | 1 | 1999 |