Inventor

William C. Dorsey

Inventor

Conestoga, PA, US

Overview

9→

Patents

1984–2001

Patent span

Fixed constructions

Primary field (CPC E)

Patents· 9 as inventor

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

Y10Tprimary

Y10TTechnical subjects covered by former us classification25%

D06NWall, floor, or like covering materials, e.g. linoleum, oilcloth, artificial leather, roofing felt, consisting of a fibrous web coated with a layer of macromolecular material17%

E04BGeneral building constructions17%

E04FFinishing work on buildings, e.g. stairs, floors8%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form4%

B44CProducing decorative effects4%

B44FSpecial designs or pictures4%

E04CStructural elements4%

F21SNon-portable lighting devices4%

F21VFunctional features or details of lighting devices or systems thereof4%

PatentTitleYear

6,179,451'Integrated indirect light and ceiling system'2001 6,177,180'Composite construction board with load bearing properties'2001 6,101,777'Suspension ceiling system'2000 5,876,810'Method of installing panels with furring tape and the resulting paneled surface'1999 5,845,447'Suspension ceiling system'1998 4,816,318'Decorative surface covering with geometric patterns and colored particles'1989 4,816,319'Decorative surface coverings'1989 4,604,312'Stress-free, embossed, ornamented tile surface covering and process for making the same'1986 4,425,449'Decorative syntactic foam products'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–2001Patents assigned to ARMSTRONG WORLD IND INC (9)· patent assignee history

1984Based in Manor Township, PA, US· patent location history

1986–2001Based in Conestoga, PA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
ARMSTRONG WORLD IND INC	9	1984–2001

Locations

Location	Patents	Span
Conestoga, Pennsylvania, US	8	1986–2001
Manor Township, Pennsylvania, US	1	1984