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Inventor

Rolf Speier

Inventor
Wettenberg, DE

Overview

3→
Patents
1978–2008
Patent span
Physics
Primary field (CPC G)

Patents· 3 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus50%
F16CShafts25%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them25%
PatentTitleYear
7,330,310'Focusing device with diopter adjustment'20087,050,226'Play-free rotary mounting'20064,130,353'Projector with controls for the slide changer'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978Patents assigned to LEITZ ERNST GMBH (1)· patent assignee history
1978Based in Wissmar, DE· patent location history
2006–2008Patents assigned to LEICA CAMERA AG (2)· patent assignee history
2006–2008Based in Wettenberg, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
LEICA CAMERA AG22006–2008
LEITZ ERNST GMBH11978
Locations
LocationPatentsSpan
Wettenberg, DE22006–2008
Wissmar, DE11978