Inventor profile of:

David B. Knowles

City:

Apollo, Pennsylvania

Country:

United States

Published Applications:

28

Last publication date:

2024-12-12

Top Assignees for applications by David B. Knowles

The entities that hold a legal rights for patent applications filed by inventor Knowles David B.:

Recent patent applications by Knowles David B.

David B. Knowles from Apollo, US has applied for patents for these inventions. The list has both pending applications and granted patents:

#1 | 2024-12-12
US20240408635A1
Performing operations; transporting

Precision Coating of Ophthalmic Lenses With Photochromic Coatings

#2 | 2021-06-03
US20210163761A1
Chemistry; metallurgy

Curable photochromic compositions

#3 | 2020-06-04
US20200172653A1
Chemistry; metallurgy

Curable photochromic composition including a segmented polymer

#4 | 2019-09-26
US20190291128A1
Performing operations; transporting

Apparatus and method for precision coating of ophthalmic lenses with photochromic coatings

#5 | 2015-10-22
US20150301357A1
Physics

Photochromic materials having extended pi-conjugated systems and compositions and articles including the same

#6 | 2015-01-15
US20150018549A1
Electricity

Metal complexes of cyclometallated imidazo[1,2-f]phenanthridine and diimidazo[1,2-a:1′,2′-c]quinazoline ligands and isoelectronic and benzannulated analogs thereof

#7 | 2014-09-04
US20140249307A1
Electricity

Metal complexes of cyclometallated imidazo[1,2-f]phenanthridine and diimidazo[1,2-a:1′,2′-c]quinazoline ligands and isoelectronic and benzannulated analogs thereof

#8 | 2014-08-14
US20140225049A1
Physics

Photochromic materials having extended pi-conjugated systems and compositions and articles including the same

#9 | 2013-11-21
US20130310561A1
Electricity

Metal complexes of cyclometallated imidazo (1,2-f) phenanthridine (1,2-a:1′, 2′-c),quinazoline ligands and isoelectronic and benzannulated analogs thereof

#10 | 2013-03-14
US20130065056A1
Physics

Ophthalmic devices comprising photochromic materials having extended pi-conjugated systems

#11 | 2012-06-14
US20120145975A1
Chemistry; metallurgy

Photochromic materials having extended pi-conjugated systems and compositions and articles including the same

#12 | 2012-06-14
US20120145973A1
Chemistry; metallurgy

Photochromic materials that include indeno-fused naphthopyrans

#13 | 2012-03-01
US20120053341A1
Chemistry; metallurgy

Photochromic materials that include 6-amino substituted indeno-fused naphthopyrans

#14 | 2011-03-31
US20110073849A1
Electricity

Metal complexes of cyclometallated imidazo[1,2-Æ’]phenanthridine and diimidazo[1,2-a:1',2'-c]quinazoline ligands and isoelectronic and benzannulated analogs thereof

#15 | 2011-03-03
US20110051223A1
Chemistry; metallurgy

Photochromic optical articles prepared with reversible thermochromic materials

#16 | 2011-03-03
US20110049445A1
Physics

Photochromic materials having extended pi-conjugated systems and compositions and articles including the same

#17 | 2011-02-24
US20110042629A1
Chemistry; metallurgy

Photochromic materials having extended pi-conjugated systems and compositions and articles including the same

#18 | 2010-06-17
US20100149620A1
Chemistry; metallurgy

Photochromic optical articles prepared with reversible thermochromic materials

#19 | 2008-12-04
US20080297033A1
Chemistry; metallurgy

Blue phosphorescent imidazophenanthridine materials

#20 | 2007-08-16
US20070190359A1
Electricity

Metal complexes of cyclometallated imidazo[1,2-f]phenanthridine and diimidazo[1,2-a:1′,2′-c]quinazoline ligands and isoelectronic and benzannulated analogs thereof

#21 | 2006-08-08
US10829011
-

Organic light emitting devices having reduced pixel shrinkage

#22 | 2006-04-18
US10421074
-

Organic light emitting devices having reduced pixel shrinkage

#23 | 2006-03-14
US10643413
-

Organic light emitting materials and devices

#24 | 2006-01-12
US20060008670A1
Chemistry; metallurgy

Organic light emitting materials and devices

#25 | 2005-07-28
US20050164030A1
Electricity

Electroluminescent stability

#26 | 2005-07-12
US10288785
-

Organic light emitting materials and devices

#27 | 2005-06-02
US20050119485A1
Chemistry; metallurgy

Organometallic compounds for use in electroluminescent devices

#28 | 2005-01-27
US20050019605A1
Electricity

Materials and structures for enhancing the performance of organic light emitting devices

InventorID:

540045 ⎘