Inventor
Hans-Heinrich Welschof
Inventor
Rodenbach, DE
Overview
Patents· 50 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F16Dprimary
F16DCouplings for transmitting rotation35%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests26%
F16CShafts9%
B60BVehicle wheels8%
B60KArrangement or mounting of propulsion units or of transmissions in vehicles7%
Y10TTechnical subjects covered by former us classification4%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges2%
F16HGearing2%
C21DModifying the physical structure of ferrous metals1%
Y02PClimate change mitigation technologies in the production or processing of goods1%
PatentTitleYear
8,114,224'Process for the production of an articulated structural part having improved wear resistance'20127,303,482'Connecting assembly'20076,902,487'Longitudinal displacement unit with braking rollers'20056,793,583'Longitudinal plunging unit'20046,390,928'Driveshaft adapted to a preferred torque transmitting direction'20026,273,825'Monobloc joint with centering means'20016,171,196'VL joint for a propeller shaft with an optimized crash behavior'20015,803,814'Tripod joint with spherical arms'19985,795,233'Universal joint'19985,704,840'Universal joint'19985,582,546'Energy absorbing propeller shaft for motor vehicles'19965,549,514'Constant velocity universal ball joint'19965,531,643'Constant velocity universal ball joint'19965,509,856'Constant velocity universal ball joint with asymmetric cage'19965,507,693'Constant velocity universal joint'19965,376,049'Tripod joint'19945,199,925'Tripod universal joint with intermediate roller elements'19935,125,873'Plunging constant velocity ratio universal joint'19925,052,979'Shaft assembly for the wheel drive of a motor vehicle'19915,026,325'Constant velocity ratio plunging universal joint'19914,893,960'Wheel Bearing/constant velocity joint unit'19904,878,882'Cross groove constant velocity ratio universal joints'19894,861,316'Constant velocity universal ball joint'19894,858,998'Wheel supporting assembly'19894,843,864'Press tooling for manufacturing constant velocity ratio universal joint members'19894,840,087'Differential gear assembly including at least one integrated constant velocity universal joint'19894,835,829'Hub assembly'19894,793,212'Differential gear assembly for motor vehicles'19884,784,441'Protective boot supporting sleeve for universal joint in wheel assembly'19884,747,805'Protective boot assembly for constant velocity universal joint'19884,741,785'Process for forming hardened contact surfaces in a universal ball joint'19884,723,464'Differential gear assembly for motor vehicles'19884,698,047'Rotary constant velocity universal joint having tracks of uniform curvature'19874,608,028'Rotary constant velocity universal joint'19864,556,400'Drive shaft assembly for motor vehicles'19854,493,388'Bearing assembly for a vehicle wheel driven by a rotary constant velocity universal joint'19854,476,950'Drive assembly for vehicle wheel'19844,460,058'Bearing assembly for a wheel hub driven by a rotary constant velocity universal joint'19844,424,047'Wheel bearing assembly'19844,405,032'Wheel hub assembly'19834,392,838'Sealing boot for universal joint'19834,275,571'Homokinetic universal joint'19814,257,244'Telescopic drive shaft'19814,156,353'Homokinetic joint assembly'19794,116,019'Bearing element seal for a universal joint'19784,094,376'Bearing assembly for a wheel hub'19784,091,641'Constant velocity universal joint'19784,023,382'Ball cage for a constant velocity universal joint'19774,008,582'Constant velocity universal joint'19773,935,717'Universal joint'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1998Patents assigned to LOEHR & BROMKAMP GMBH (39)· patent assignee history
1976Based in Obertshausen, DE· patent location history
1977–2012Based in Rodenbach, DE· patent location history
1978–1985Patents assigned to UNI CARDAN AG (2)· patent assignee history
1989Based in Offenbach, DE· patent location history
1996Patents assigned to GKN AUTOMOTIVE AG (2)· patent assignee history
2001–2004Patents assigned to GKN LOEBRO GMBH (4)· patent assignee history
2005–2007Patents assigned to GKN DRIVELINE DEUTSCHLAND GMBH (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| LOEHR & BROMKAMP GMBH | 39 | 1976–1998 |
| GKN LOEBRO GMBH | 4 | 2001–2004 |
| GKN AUTOMOTIVE AG | 2 | 1996 |
| GKN DRIVELINE DEUTSCHLAND GMBH | 2 | 2005–2007 |
| UNI CARDAN AG | 2 | 1978–1985 |
Locations
| Location | Patents | Span |
|---|---|---|
| Rodenbach, DE | 48 | 1977–2012 |
| Offenbach, DE | 1 | 1989 |
| Obertshausen, DE | 1 | 1976 |