Inventor
Roger R. Kult
Inventor
Maplewood, MN, US
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus31%
Y10TTechnical subjects covered by former us classification31%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form13%
E01FAdditional work, such as equipping roads or the construction of platforms, helicopter landing stages, signs, snow fences, or the like13%
B29DProducing particular articles from plastics or from substances in a plastic state6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
PatentTitleYear
5,536,569'Thermoplastic marking sheet'19965,194,113'Process for making conformable thermoplastic marking sheet'19935,066,098'Cellular encapsulated-lens high whiteness retroreflective sheeting with flexible cover sheet'19915,064,272'Encapsulated-lens retroreflective sheeting and method of making'19914,897,136'Method of making encapsulated-lens retroreflective sheeting'19904,896,943'Encapsulated-lens retroreflective sheeting having improved cover film'19904,663,213'Transparent multi-layer cover film for retroreflective sheeting'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–1996Patents assigned to MINNESOTA MINING & MFG (7)· patent assignee history
1987–1996Based in Maplewood, MN, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MINNESOTA MINING & MFG | 7 | 1987–1996 |
Locations
| Location | Patents | Span |
|---|---|---|
| Maplewood, Minnesota, US | 7 | 1987–1996 |