Inventor
Ronald S. Steelman
Inventor
Woodbury, MN, US
Overview
Patents· 37 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y10Tprimary
Y10TTechnical subjects covered by former us classification17%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form10%
B29CShaping or joining of plastics8%
C09JAdhesives7%
B44CProducing decorative effects6%
G09FDisplaying5%
B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts4%
B41MPrinting, duplicating, marking, or copying processes4%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%
C08LCompositions of macromolecular compounds3%
PatentTitleYear
10,870,750Acrylic polyvinyl acetal films and composition202010,358,582Marking film201910,167,386Acrylic polyvinyl acetal films and composition20199,855,732'Method of applying adhesive coated film'20189,339,997'Adhering graphic films on irregular substrates'20169,308,773'Graphic article'20169,303,829'Illumination devices and methods for making the same'20169,303,827'Illumination devices and methods for making the same'20169,221,237'Method of applying adhesive coated film'20158,860,296'Illumination devices and methods for making the same'20148,801,207'Light directing sign substrate'20148,791,207'Adhesive composition'20148,778,122'Adhering graphic films on irregular substrates'20148,608,897'Method of applying adhesive coated film'20138,525,402'Illumination devices and methods for making the same'20137,594,976'Methods of manufacturing substrates'20097,413,626'Adhesive film removal method and apparatus'20087,141,133'Method of conforming a film to a surface'20066,872,268'Method of conforming an adherent film to a substrate by application of vacuum'20056,824,638'Graphic image film registration systems and methods'20046,706,131'Film lamination and removal system and methods of use'20046,645,328'Steered vacuum-assisted laminating apparatus and methods of use'20036,613,181'Vacuum-assisted laminator and methods of using the same'20036,579,601'Conformable multilayer films'20036,520,234'Steered vacuum-assisted laminating apparatus and methods of use'20036,474,389'Vacuum-assisted laminator and methods of using the same'20026,322,874'Electrostatic toner receptor layer of rubber modified thermoplastic'20016,311,399'Multi-pin air release tool and method'20016,221,198'Method of stabilizing films or membranes using adhesive as a reservoir'20015,852,121'Electrostatic toner receptor layer of rubber modified thermoplastic'19985,681,631'Graphics transfer article'19975,573,865'Graphics transfer article'19964,820,559'Graphics transfer medium'19894,770,732'Transfer method for applying graphics to a display surface'19884,310,615'Image transfer element having release layer'19824,262,079'Image transfer element'19814,226,927'Photographic speed transfer element with oxidized polyethylene stripping layer'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–1998Patents assigned to MINNESOTA MINING & MFG (8)· patent assignee history
1980–1989Based in Oakdale, MN, US· patent location history
1981–1982Based in St. Paul, MN, US· patent location history
1996–2020Based in Woodbury, MN, US· patent location history
2001–2020Patents assigned to 3M INNOVATIVE PROPERTIES CO (29)· patent assignee history
2013–2019Patents assigned to STEELMAN RONALD S (7)· patent assignee history
2013Patents assigned to DAVID JOHN R (2)· patent assignee history
2014–2019Patents assigned to DANIELS MICHAEL P (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| 3M INNOVATIVE PROPERTIES CO | 29 | 2001–2020 |
| MINNESOTA MINING & MFG | 8 | 1980–1998 |
| STEELMAN RONALD Sself | 7 | 2013–2019 |
| DANIELS MICHAEL P | 2 | 2014–2019 |
| DAVID JOHN R | 2 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Woodbury, Minnesota, US | 32 | 1996–2020 |
| Oakdale, Minnesota, US | 3 | 1980–1989 |
| St. Paul, Minnesota, US | 2 | 1981–1982 |