Inventor

John H. Shaffer

Inventor
Cleveland, TN, US

Overview

18→
Patents
1982–2011
Patent span
Chemistry
Primary field (CPC C)

Patents· 18 as inventor

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

C01Bprimary
C01BNon-metallic elements37%
H04LTransmission of digital information, e.g. telegraphic communication15%
A23CDairy products, e.g. milk, butter or cheese7%
C01DCompounds of alkali metals, i.e. lithium, sodium, potassium, rubidium, caesium, or francium7%
G06FElectric digital data processing7%
B01DSeparation4%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry4%
C07DHeterocyclic compounds4%
G10LSpeech analysis techniques or speech synthesis4%
G11BInformation storage based on relative movement between record carrier and transducer4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982–1994Patents assigned to OLIN CORP (11)· patent assignee history
1982–1994Based in Cleveland, TN, US· patent location history
2000–2004Patents assigned to IBM (5)· patent assignee history
2000–2011Based in Rochester, MN, US· patent location history
2010Patents assigned to BROCADE COMM SYSTEMS INC (1)· patent assignee history
2011Patents assigned to AAKER KENNETH D (1)· patent assignee history
2011Patents assigned to BITTON YOSEF (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
OLIN CORP111982–1994
IBM52000–2004
AAKER KENNETH D12011
BITTON YOSEF12011
BROCADE COMM SYSTEMS INC12010
Locations
LocationPatentsSpan
Cleveland, TN, US111982–1994
Rochester, Minnesota, US72000–2011