Inventor

Egerhardt Graf

Inventor

Joinville, BR

Overview

1→

Patents

2011

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 1 as inventor

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

F04Bprimary

F04BPositive-displacement machines for liquids33%

F05BIndexing scheme relating to wind, spring, weight, inertia or like motors, to machines or engines for liquids covered by subclasses f03b, f03d and f03g33%

F25BRefrigeration machines, plants or systems33%

PatentTitleYear

8,037,809'Piston-and-cylinder assembly with a variable diametral clearance, and a cylinder for use in a piston-and-cylinder assembly with a variable diametral clearance'2011

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2011Patents assigned to WHIRLPOOL SA (1)· patent assignee history

2011Based in Joinville, BR· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
WHIRLPOOL SA	1	2011

Locations

Location	Patents	Span
Joinville, BR	1	2011