Inventor
BRITTON G. BILLINGSLEY
Inventor
US
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A61Fprimary
A61FFilters implantable into blood vessels22%
G02BOptical elements, systems or apparatus17%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein17%
A42BHats11%
G06KGraphical data reading11%
A62BDevices, apparatus or methods for life-saving6%
B60JWindows, windscreens, non-fixed roofs, doors, or similar devices for vehicles6%
E06BFixed or movable closures for openings in buildings, vehicles, fences or like enclosures in general, e.g. doors, windows, blinds, gates6%
G06FElectric digital data processing6%
PatentTitleYear
12,159,177Optical articles and systems interacting with the same202412,150,901Darkening filter comprising a non-uniform pattern of switchable shutters202411,413,190Protective headgear comprising a curved switchable shutter and comprising multiple antireflective layers202211,373,076Optical articles and systems interacting with the same202211,260,251Respirator device with light exposure detection202211,160,687Vision-protective headgear with automatic darkening filter comprising an array of switchable shutters2021Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2021–2022Patents assigned to 3M INNOVATIVE PROPERTIES CO (4)· patent assignee history
2021–2024Based in US· patent location history
2024Patents assigned to 3M INNOVATIVE PROPERTIES COMPANY (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| 3M INNOVATIVE PROPERTIES CO | 4 | 2021–2022 |
| 3M INNOVATIVE PROPERTIES COMPANY | 2 | 2024 |
Locations
| Location | Patents | Span |
|---|---|---|
| US | 6 | 2021–2024 |