Inventor
RANDAL M. HILL
Inventor
US
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C09Kprimary
C09KMaterials for miscellaneous applications, not provided for elsewhere28%
E21BEarth or rock drilling22%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein17%
C04BLime, magnesia6%
C07CAcyclic or carbocyclic compounds6%
C07GCompounds of unknown constitution6%
F21SNon-portable lighting devices6%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them6%
H04NPictorial communication, e.g. television6%
PatentTitleYear
12,158,684Method for driving two layer variable transmission display202411,733,580Method for driving two layer variable transmission display202311,634,625Siloxane surfactant additives for oil and gas applications202311,560,351Methods and compositions incorporating alkyl polyglycoside surfactant for use in oil and/or gas wells202311,467,466Illumination systems for reflective displays202211,254,856Methods and compositions for use in oil and/or gas wells202211,180,690Diluted microemulsions with low surface tensions202111,149,189Siloxane surfactant additives for oil and gas applications2021Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2021–2023Patents assigned to FLOTEK CHEMISTRY LLC (5)· patent assignee history
2021–2024Based in US· patent location history
2022–2024Patents assigned to E INK CORP (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FLOTEK CHEMISTRY LLC | 5 | 2021–2023 |
| E INK CORP | 3 | 2022–2024 |
Locations
| Location | Patents | Span |
|---|---|---|
| US | 8 | 2021–2024 |