Inventor

Eric Spencer Hall

Inventor
Lexington, KY, US

Overview

8→
Patents
2003–2021
Patent span
Performing operations
Primary field (CPC B)

Patents· 8 as inventor

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

B41Jprimary
B41JTypewriters54%
Y10TTechnical subjects covered by former us classification15%
F02BInternal-combustion piston engines8%
F02DControlling combustion engines8%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof8%
Y02TClimate change mitigation technologies related to transportation8%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2003–2011Patents assigned to LEXMARK INT INC (7)· patent assignee history
2003–2011Based in Lexington, KY, US· patent location history
2021Patents assigned to GM GLOBAL TECH OPERATIONS LLC (1)· patent assignee history
2021Based in Rochester Hills, MI, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
LEXMARK INT INC72003–2011
GM GLOBAL TECH OPERATIONS LLC12021
Locations
LocationPatentsSpan
Lexington, KY, US72003–2011
Rochester Hills, MI, US12021