Inventor

Dorothy M. Hoffman

Inventor

Titusville, NJ, US

Overview

5→

Patents

1980–2021

Patent span

Electricity

Primary field (CPC H)

Patents· 5 as inventor

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

C23Cprimary

C23CCoating metallic material20%

G06FElectric digital data processing10%

H01JElectric discharge tubes or discharge lamps10%

H04LTransmission of digital information, e.g. telegraphic communication10%

H10DInorganic electric semiconductor devices10%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation10%

H10NElectric solid-state devices not otherwise provided for10%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%

Y10TTechnical subjects covered by former us classification10%

PatentTitleYear

10,887,262Visibility filtering2021 4,687,537'Epitaxial metal silicide layers'1987 4,686,112'Deposition of silicon dioxide'1987 4,472,453'Process for radiation free electron beam deposition'1984 4,214,018'Method for making adherent pinhole free aluminum films on pyroelectric and/or piezoelectric substrates'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980–1987Patents assigned to RCA CORP (4)· patent assignee history

1980–1987Based in Titusville, NJ, US· patent location history

1987Based in Hopewell Township, Mercer County, NJ, US· patent location history

2021Patents assigned to TWITTER INC (1)· patent assignee history

2021Based in San Francisco, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
RCA CORP	4	1980–1987
TWITTER INC	1	2021

Locations

Location	Patents	Span
Titusville, New Jersey, US	3	1980–1987
San Francisco, California, US	1	2021
Hopewell Township, Mercer County, New Jersey, US	1	1987