Spiro-containing platinum(II) emitters with tunable emission energies and syntheses thereof

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11958870
APP PUB NO 20210261588A1
SERIAL NO

16969872

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

An asymmetric tetradentate metal complex of a N{circumflex over ( )}C{circumflex over ( )}C{circumflex over ( )}N comprising tetradentate ligand has a metal connected to binding sites which are connected to each other via three or four covalent bonds that can be either single or double bonds with bridging linkers reside between C{circumflex over ( )}C and C{circumflex over ( )}N moieties. These linkers result in three-dimension metal complexes with distorted square planar geometries. The four donor atoms coordinate to a metal center. Upon metal binding a 5-6-6 membered metallocycle is formed upon chelation including a first nitrogen donor bond, a first metal-carbon bond, a second metal-carbon bond, and a second nitrogen donor bond. The light emission from these metal complexes can be tuned by the ligand structure over the entire visible spectrum.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • THE UNIVERSITY OF HONG KONG

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ang, Wai Hung Hong Kong, CN 1 0
Che, Chi Ming Hong Kong, CN 45 131
Cheng, Gang Hong Kong, CN 222 2282
Mao, Mao Hong Kong, CN 26 494

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Oct 16, 2027
7.5 Year Payment $3600.00 $1800.00 $900.00 Oct 16, 2031
11.5 Year Payment $7400.00 $3700.00 $1850.00 Oct 16, 2035
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00