Inventor

Yu-Chia T. Chou

Inventor

Wilmington, DE, US

Overview

6→

Patents

1986–2021

Patent span

Human necessities

Primary field (CPC A)

Patents· 6 as inventor

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

A23Kprimary

A23KFodder14%

A21DTreatment of flour or dough for baking, e.g. by addition of materials9%

D21CProduction of cellulose by removing non-cellulose substances from cellulose-containing materials9%

D21HPulp compositions9%

H01LSemiconductor devices9%

H10DInorganic electric semiconductor devices9%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%

C07CAcyclic or carbocyclic compounds5%

C12NMicroorganisms or enzymes5%

C12PFermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture5%

PatentTitleYear

11,011,391Semiconductor structure and method for fabricating the same2021 10,903,350Semiconductor devices and methods for forming the same2021 4,957,599'Alkaline extraction, peroxide bleaching of nonwoody lignocellulosic substrates'1990 4,859,282'Acid purification of product from alkaline peroxide processing of nonwoody lignocellulosic substrates'1989 4,644,060'Supercritical ammonia treatment of lignocellulosic materials'1987 4,588,847'Process for separation of ethylene glycol and propylene glycol on selected zeolites'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–1990Patents assigned to DU PONT (4)· patent assignee history

1986–1990Based in Wilmington, DE, US· patent location history

2021Patents assigned to VANGUARD INT SEMICONDUCT CORP (2)· patent assignee history

2021Based in New Taipei, TW· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
DU PONT	4	1986–1990
VANGUARD INT SEMICONDUCT CORP	2	2021

Locations

Location	Patents	Span
Wilmington, Delaware, US	4	1986–1990
New Taipei, TW	2	2021