Inventor

Friedbert Schmid

Inventor

Bad Uberkingen, DE

Overview

1984–2004

Patent span

Textiles

Primary field (CPC D)

Patents· 15 as inventor

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

D01Hprimary

D01HSpinning or twisting79%

C23CCoating metallic material5%

F16CShafts5%

G06FElectric digital data processing5%

Y10TTechnical subjects covered by former us classification5%

PatentTitleYear

6,826,899'Rotor shaft for an open-end spining rotor'2004 6,190,053'Step bearing housing for an open-end spinning rotor shaft and method of operating same'2001 6,067,786'Opening device for an open-end spinning aggregate and method of making same'2000 6,006,512'Rotor cup for open-end spinning and method of making same'1999 5,867,974'Opening device for an open-end spinning machine'1999 5,768,880'Opening roller for an open-end spinning device'1998 5,749,216'Open end spinning apparatus'1998 5,689,946'Opening roller for an open-end spinning arrangement'1997 5,321,943'Yarn withdrawal nozzle for open-end spinning arrangements'1994 5,164,236'Opening roller for an open-end spinning arrangement'1992 4,894,983'Opening roller for an open-end spinning arrangement'1990 4,703,616'Bearing and drive for a horizontally arranged open-end spinning rotor'1987 RE032507'Opening roller unit for open-end spinning installations'1987 4,667,464'Bearing and driving arrangement for a spinning rotor of an open-end spinning machine'1987 4,435,953'Opening roller unit for open-end spinning installations'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–1998Patents assigned to STAHLECKER FRITZ (4)· patent assignee history

1984–1998Patents assigned to STAHLECKER HANS (4)· patent assignee history

1984–1999Based in Bad Uberkingen, DE· patent location history

1987–2004Based in Bad Duerkheim, DE· patent location history

1990–2000Patents assigned to STAHLECKER GMBH WILHELM (3)· patent assignee history

1994–1999Patents assigned to SCHURR STAHLECKER & GRILL (4)· patent assignee history

2001Patents assigned to NOVIBRA GMBH (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SCHURR STAHLECKER & GRILL	4	1994–1999
STAHLECKER FRITZ	4	1984–1998
STAHLECKER HANS	4	1984–1998
STAHLECKER GMBH WILHELM	3	1990–2000
NOVIBRA GMBH	1	2001

Locations

Location	Patents	Span
Bad Uberkingen, DE	8	1984–1999
Bad Duerkheim, DE	7	1987–2004