Inventor
Andrew T. Ruff
Inventor
Mendota Heights, MN, US
Overview
Patents· 27 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus18%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests16%
B29CShaping or joining of plastics15%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form12%
Y10TTechnical subjects covered by former us classification10%
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. inserts8%
B29LIndexing scheme associated with subclass b29c, relating to particular articles5%
B29DProducing particular articles from plastics or from substances in a plastic state4%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein4%
B42DBooks3%
PatentTitleYear
10,917,483Automated communication-based intelligence engine20219,314,961'Processes and apparatus for making transversely drawn films with substantially uniaxial character'20167,851,054'Multilayer optical films having one or more reflection bands'20107,744,987'Optical polarizing films'20107,740,470'Processes and apparatus for making transversely drawn films with substantially uniaxial character'20107,526,164'Reflective polarizers containing polymer fibers'20097,356,229'Reflective polarizers containing polymer fibers'20087,316,558'Devices for stretching polymer films'20087,256,936'Optical polarizing films with designed color shifts'20077,236,296'Multilayer infrared reflecting film with high and smooth transmission in visible wavelength region and laminate articles made therefrom'20077,229,271'Apparatus for making transversely drawn films with substantially uniaxial character'20077,153,122'Apparatus for making transversely drawn films with substantially uniaxial character'20067,153,123'Devices for conveying, stretching, and taking-away polymer films'20067,141,297'Multilayer optical bodies'20067,104,776'Methods and devices for stretching polymer films'20067,094,461'P-polarizer with large z-axis refractive index difference'20067,064,897'Optical polarizing films with designed color shifts'20066,949,212'Methods and devices for stretching polymer films'20056,939,499'Processes and apparatus for making transversely drawn films with substantially uniaxial character'20056,936,209'Methods and devices for processing polymer films'20056,927,900'Multilayer infrared reflecting film with high and smooth transmission in visible wavelength region and laminate articles made therefrom'20056,916,440'Processes and apparatus for making transversely drawn films with substantially uniaxial character'20056,888,677'Multilayer optical bodies'20056,797,396'Wrinkle resistant infrared reflecting film and non-planar laminate articles made therefrom'20046,744,561'Multilayer optical bodies'20046,680,114'Fibrous films and articles from microlayer substrates'20046,498,683'Multilayer optical bodies'2002Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2002–2016Patents assigned to 3M INNOVATIVE PROPERTIES CO (26)· patent assignee history
2002–2016Based in Mendota Heights, MN, US· patent location history
2016Patents assigned to JACKSON JEFFERY N (1)· patent assignee history
2016Patents assigned to KRUEGER DENNIS L (1)· patent assignee history
2016Patents assigned to MERRILL WILLIAM WARD (1)· patent assignee history
2021Patents assigned to NUMBERAI INC (1)· patent assignee history
2021Based in Berkeley, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| 3M INNOVATIVE PROPERTIES CO | 26 | 2002–2016 |
| JACKSON JEFFERY N | 1 | 2016 |
| KRUEGER DENNIS L | 1 | 2016 |
| MERRILL WILLIAM WARD | 1 | 2016 |
| NUMBERAI INC | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Mendota Heights, Minnesota, US | 26 | 2002–2016 |
| Berkeley, California, US | 1 | 2021 |