Inventor
ROBERT W. WALTERS
Inventor
US
Overview
Patents· 11 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 elsewhere18%
C07DHeterocyclic compounds16%
C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium9%
G02BOptical elements, systems or apparatus9%
G03CPhotosensitive materials for photographic purposes9%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients7%
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments7%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds4%
C09DCoating compositions, e.g. paints, varnishes or lacquers4%
G02CSpectacles4%
PatentTitleYear
12,404,448Dihydroquinoline photochromic compounds202512,344,617Indolonaphthopyrans202512,304,991Photochromic article202512,247,035Articles comprising indolenaphthopyrans202512,171,138Organic electroluminescent materials and devices202411,897,894Indolenaphthopyrans202411,746,283Silole and germole fused ring photochromic compounds202311,629,151Method for preparing indolenaphthopyrans202311,618,756Compounds for coordinating with a metal, compositions containing such compounds, and methods of catalyzing reactions202311,518,751Photochromic indeno-fused naphthopyran compounds with reduced temperature dependence202211,404,650Stability OLED materials and devices2022Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2022–2025Patents assigned to TRANSITIONS OPTICAL LTD (8)· patent assignee history
2022–2024Patents assigned to UNIVERSAL DISPLAY CORP (2)· patent assignee history
2022–2025Based in US· patent location history
2023Patents assigned to PPG IND OHIO INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TRANSITIONS OPTICAL LTD | 8 | 2022–2025 |
| UNIVERSAL DISPLAY CORP | 2 | 2022–2024 |
| PPG IND OHIO INC | 1 | 2023 |
Locations
| Location | Patents | Span |
|---|---|---|
| US | 11 | 2022–2025 |