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Inventor

Helmut Wierzba

Inventor
Schwabach, DE

Overview

5→
Patents
2000–2017
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 5 as inventor

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

F01Nprimary
F01NGas-flow silencers or exhaust apparatus for machines or engines in general40%
F16LPipes40%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges10%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
PatentTitleYear
9,664,226'Assembly unit'20176,250,693'Device for connecting two tubular pipe sections'20016,179,345'Device for connecting two tubular piping parts'20016,052,991'Arrangement for interconnecting two pipe sections in a motor vehicle exhaust system'20006,042,154'Arrangement for joining tubular duct sections'2000

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2000–2001Patents assigned to LEISTRITZ ABGASTECH (3)· patent assignee history
2000Patents assigned to DAIMLER CHRYSLER AG (2)· patent assignee history
2000Patents assigned to LEISTRITZ AG & CO (1)· patent assignee history
2000–2017Based in Schwabach, DE· patent location history
2001Patents assigned to DAIMLER BENZ AG (2)· patent assignee history
2001Patents assigned to MUHR & BENDER (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
LEISTRITZ ABGASTECH32000–2001
DAIMLER BENZ AG22001
DAIMLER CHRYSLER AG22000
LEISTRITZ AG & CO12000
MUHR & BENDER12001
Locations
LocationPatentsSpan
Schwabach, DE52000–2017