Inventor

DAVID WILLIAM NORMAN

Inventor

Overview

2→

Patents

2023–2024

Patent span

Chemistry

Primary field (CPC C)

Patents· 2 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

B32Bprimary

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form12%

C08BPolysaccharides12%

C08JWorking-up12%

C08LCompositions of macromolecular compounds12%

C09KMaterials for miscellaneous applications, not provided for elsewhere12%

G02BOptical elements, systems or apparatus12%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein12%

H10KOrganic electric solid-state devices12%

H01LSemiconductor devices6%

PatentTitleYear

12,006,376Regioselectively substituted cellulose esters and films made therefrom2024 11,643,477Regioselectively substituted cellulose esters and films made therefrom2023

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2023–2024Patents assigned to EASTMAN CHEM CO (2)· patent assignee history

2023–2024Based in US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
EASTMAN CHEM CO	2	2023–2024

Locations

Location	Patents	Span
US	2	2023–2024