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Inventor

Charles M. Fischer

Inventor
Pleasantville, NY, US

Overview

3→
Patents
1981–2021
Patent span
General tagging of new technological developments
Primary field (CPC Y)

Patents· 3 as inventor

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

A61Mprimary
A61MDevices for introducing media into, or onto, the body40%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests40%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution20%
PatentTitleYear
D0921576Battery20214,265,239'Gas scavenging exhaust system'19814,248,218'Gas administration scavenging mask'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981Patents assigned to FISCHER CHARLES M (1)· patent assignee history
1981Patents assigned to FISCHER JR CHARLES M (1)· patent assignee history
1981Patents assigned to PRICE ROBERT S (1)· patent assignee history
1981Based in San Ramon, CA, US· patent location history
1981Based in Alamo, CA, US· patent location history
2021Patents assigned to DURACELL US OPERATIONS INC (1)· patent assignee history
2021Based in Pleasantville, NY, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DURACELL US OPERATIONS INC12021
FISCHER CHARLES Mself11981
FISCHER JR CHARLES Mself11981
PRICE ROBERT S11981
Locations
LocationPatentsSpan
Pleasantville, New York, US12021
San Ramon, California, US11981
Alamo, California, US11981