Inventor
Hans Butz
Inventor
Schwebheim, DE
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B22Dprimary
B22DCasting of metals19%
B62MRider propulsion of wheeled vehicles or sledges14%
B60BVehicle wheels10%
F16DCouplings for transmitting rotation10%
Y10TTechnical subjects covered by former us classification10%
B25BTools or bench devices not otherwise provided for, for fastening, connecting, disengaging, or holding5%
B62JCycle saddles or seats5%
B62KCycles5%
B62LBrakes specially adapted for cycles5%
F02DControlling combustion engines5%
PatentTitleYear
7,343,935'Gas flow control flap operating mechanism'20086,692,400'Multi-speed gear hub shiftable under load'20045,895,991'Electric generator for bicycles'19995,402,993'Immersion casting pipe for thin slabs'19955,314,099'Casting spout for metallurgical vessels'19944,567,973'Freewheel drive hub for a bicycle'19864,429,448'Mounting device for a bicycle hub'19844,405,180'Wheel hub for two-wheeled vehicles'19834,086,957'Withdrawal roll in continuous casting machine'19784,029,179'Disk brake with axially floating casing'19774,019,560'Spray cooling of continuously cast ingots'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1986Patents assigned to FICHTEL & SACHS AG (4)· patent assignee history
1977–1995Patents assigned to MANNESMANN AG (4)· patent assignee history
1977–2004Based in Schwebheim, DE· patent location history
1977–1995Based in Duisburg, DE· patent location history
1995Patents assigned to ARVEDI GIOVANNI (1)· patent assignee history
1999–2004Patents assigned to SRAM DE GMBH (2)· patent assignee history
2008Patents assigned to DAIMLER CHRYSLER AG (1)· patent assignee history
2008Based in Esslingen, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FICHTEL & SACHS AG | 4 | 1977–1986 |
| MANNESMANN AG | 4 | 1977–1995 |
| SRAM DE GMBH | 2 | 1999–2004 |
| ARVEDI GIOVANNI | 1 | 1995 |
| DAIMLER CHRYSLER AG | 1 | 2008 |
Locations
| Location | Patents | Span |
|---|---|---|
| Schwebheim, DE | 6 | 1977–2004 |
| Duisburg, DE | 4 | 1977–1995 |
| Esslingen, DE | 1 | 2008 |