LexDanaLexDanabeta
Inventor

Tigree Milam Butcher

Inventor
Cleveland, GA, US

Overview

4→
Patents
2003–2011
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 4 as inventor

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

F01Lprimary
F01LCyclically operating valves for machines or engines38%
A47GHousehold or table equipment25%
F16KValves25%
F16JPistons13%
PatentTitleYear
8,011,669'Valve stem seal with gas relief features'2011RE040764'Two-piece valve stem seal'20096,901,902'Two-piece valve stem seal'20056,561,519'Dual seal'2003

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2003–2011Patents assigned to FREUDENBERG NOK GP (3)· patent assignee history
2003–2011Based in Cleveland, GA, US· patent location history
2009Patents assigned to FREUDENBERY NOK GENERAL PARTNE (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FREUDENBERG NOK GP32003–2011
FREUDENBERY NOK GENERAL PARTNE12009
Locations
LocationPatentsSpan
Cleveland, Georgia, US42003–2011