Inventor

Heinrich Hofmann

Inventor

Schweinfurt, DE

Overview

1976–2021

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 103 as inventor

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

F16Cprimary

F16CShafts34%

B60BVehicle wheels12%

G01PMeasuring linear or angular speed, acceleration, deceleration, or shock7%

Y10TTechnical subjects covered by former us classification7%

F16DCouplings for transmitting rotation5%

B60TVehicle brake control systems or parts thereof4%

F16JPistons3%

Y02TClimate change mitigation technologies related to transportation3%

C04BLime, magnesia2%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests2%

PatentTitleYear

11,053,982Method and device for assembly of an angular contact roller bearing2021 10,865,829Method and device for producing an angular contact roller bearing2020 10,690,181Angular contact roller bearing and method and device for the assembly thereof2020 10,655,672Method and device for producing an angular contact roller bearing2020 10,598,218Angular contact roller bearing and method and device for the assembly thereof2020 8,690,447'Ball roller bearing, in particular for absorbing combined radial and axial loads'2014 8,615,885'Method for producing the rolling elements of a ball roller bearing'2013 8,596,873'Ball roller bearing'2013 8,480,307'Ball roller bearing'2013 8,425,122'Angular contact rolling-element bearing, especially double row ball roller bearing in tandem arrangement'2013 8,419,289'Radial anti-friction bearing, in particular, single-row spherical roller bearing, and method for mounting thereof'2013 8,393,081'Method for filling a ball roller bearing with roll bodies as well as a ball roller bearing filled according to the method'2013 8,382,379'Ball roller bearing and method for the installation of such a ball roller bearing'2013 8,309,113'Porous coating loaded with a liquid or a solid substance'2012 8,262,293'Radial rolling bearing'2012 8,057,104'Angular contact roller bearings, in particular multi-row ball roller bearings'2011 8,047,723'Single-row spherical roller bearing with increased axial load capacity'2011 8,007,185'Radial rolling bearing'2011 8,007,180'Sealing arrangement'2011 7,938,585'Radial antifriction bearing, especially single-row grooved antifriction bearing'2011 7,901,727'Reinforced porous coating'2011 7,897,253'Pigmented ceramic piece'2011 7,891,880'Radial rolling bearing, especially single-row deep groove rolling bearing'2011 7,871,134'Wheel hub comprising axial recesses formed between the holes for lug bolts'2011 7,828,484'Radial antifriction bearing, particularly a single-row grooved antifriction bearing or angular contact antifriction bearing'2010 7,819,589'Radial roller bearing, in particular a single-groove grooved ball bearing'2010 7,632,020'Sealing arrangement'2009 7,631,948'Wheel hub comprising axial recesses formed between the holes for wheel nuts'2009 7,607,837'Wheel bearing module in a wheel carrier'2009 7,604,416'Outer ring of a wheel bearing, and axial securing element for said outer ring'2009 7,600,614'Assembly comprised of a brake disk with a hub'2009 7,600,923'Wheel bearing in a wheel carrier'2009 7,547,147'Wheel bearing unit embodied as an angular contact ball bearing'2009 7,465,102'Bearing ring and wheel bearing unit'2008 7,458,727'Seal arrangement with encoder and magnetization head for the encoder'2008 7,407,045'Connection between a wheel bearing and a wheel carrier'2008 7,362,200'Seal arrangement with encoder and magnetization head for the encoder'2008 7,287,908'Arrangement of a sensor on a wheel bearing unit'2007 7,178,413'Wheel bearing with sensors'2007 7,140,781'Sealing unit for a wheel bearing'2006 7,077,574'Seal arrangement with encoder and magnetization head for the encoder'2006 6,978,866'Wheel bearing with brake disk'2005 6,857,783'Protective device for antifriction bearing with rotational speed measurement'2005 6,832,855'Wheel bearing unit with mounting openings for the brake caliper carrier'2004 6,802,399'Wheel bearing flange and flat brake disk for motor vehicles'2004 6,790,145'Wheel bearing unit, comprising roller bearing and constant-velocity joint'2004 6,701,780'Wheel bearing for measuring the contact forces between tire and road'2004 6,551,190'Wheel bearing with positive-locking connection'2003 6,367,979'Angular contact ball bearing installable in a closed housing'2002 6,230,848'Wheel bearing with braking connection to a brake element'2001 6,220,760'Three-ring needle bearing'2001 6,221,175'Method for the production of a ceramic layer on a metallic base material'2001 6,170,919'Vehicle suspension assembly'2001 6,158,326'Unit consisting of an electric motor and of a working machine driven thereby'2000 6,106,156'Device for fastening rolling-contact bearing rings'2000 6,045,267'Mounting for rotational speed sensor for wheel bearing for automobiles'2000 5,990,675'Anti-friction bearing with speed measuring devices having an active microcircuit and a frequency generator'1999 5,969,518'Antifriction mounting having a rotational-speed measuring device protected from contamination'1999 5,921,633'Wheel mounting with rotatable wheel flange having different plane attachments'1999 5,911,459'Method of installing an antifriction bearing ring in a housing'1999 5,911,425'Steering knuckle assembly for automotive vehicles'1999 5,898,388'Rolling contact bearing with rotational speed measuring device'1999 5,764,049'Speed of rotation detection deice for wheel bearing'1998 5,674,011'Wheel bearing connector and seal unit'1997 5,596,798'Apparatus for assembling a bearing unit, in particular a wheel bearing unit for motor vehicles'1997 5,544,962'Wheel bearing unit with speed of rotation sensor'1996 5,176,457'Anchoring a double row angular anti-friction bearings'1993 5,117,908'Method and equipment for obtaining energy from oil wells'1992 5,104,832'Sinterable zirconium oxide powder and process for its production'1992 5,030,601'Process for the production of sinterable zirconium oxide powder'1991 4,986,607'Wheel mount for driven wheels'1991 4,958,944'Bearing for wheel mount'1990 4,952,078'Die cast anti-friction bearing housing'1990 4,944,611'Die cast anti-friction bearing housing'1990 4,943,171'Welded connection for wheel bearing unit for motor vehicles'1990 4,904,623'Molded metal carbide-boride refractory products'1990 4,887,917'Wheel mount and method of connecting the parts of a wheel mount'1989 4,824,265'Cage for tapered roller bearing'1989 4,812,058'Cage for tapered roller bearings'1989 4,804,233'Double-row anti-friction bearing, particulary for wheels of automotive vehicles'1989 4,765,688'Anti-friction bearing for wheels of automotive vehicles'1988 4,723,851'Double-row angular-contact ball bearing'1988 4,670,408'Process for the preparation of carbide-boride products'1987 4,613,239'Solid window cage for cylindrical roller bearing'1986 4,611,933'Fastening of anti-friction bearings'1986 4,606,658'Cage for two-row angular-contact ball bearing'1986 4,606,655'Roller bearing'1986 4,603,983'Axial shift arrangement for two-row angular-contact bearing'1986 4,508,397'Anti-friction bearing with assembly feature'1985 4,498,115'Magnetic-tape cassette having a capstan cleaning device'1985 4,475,777'Split-ring roller bearing'1984 4,398,775'Journal bearing with one axially divided inner or outer ring'1983 4,345,800'Double-row radially self-aligning roller bearing'1982 4,296,979'Journal bearing for the shaft of a water pump or the like'1981 4,252,386'Journal bearing with axially split bearing rings'1981 4,153,309'Shoulderless roller bearing'1979 4,138,170'Cageless ball or roller bearing'1979 4,125,298'Assembly of hardened and deformable metal parts'1978 4,100,836'Combustion chamber system for the production of propelling gases'1978 4,089,570'Journal bearing with axially split bearing rings'1978 4,051,596'Wire cutter, particularly for cutting electrical connection wires'1977 3,975,066'Journal bearing'1976 3,967,553'Flammability promoting ammunition for use against airborne targets'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1997Patents assigned to KUGELFISCHER G SCHAEFER & CO (31)· patent assignee history

1976–2021Based in Schweinfurt, DE· patent location history

1977–1985Based in Biebertal, DE· patent location history

1987–1990Based in Gerlingen, DE· patent location history

1991–1992Based in Andelfingen, CH· patent location history

1998–2004Patents assigned to FAG AUTOMOBILTECHNIK AG (14)· patent assignee history

2001–2012Based in Pully, CH· patent location history

2004–2009Patents assigned to FAG KUGELFISCHER AG (12)· patent assignee history

2008–2011Patents assigned to SCHAEFFLER KG (15)· patent assignee history

2012–2021Patents assigned to SCHAEFFLER TECHNOLOGIES AG (14)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
KUGELFISCHER G SCHAEFER & CO	31	1976–1997
SCHAEFFLER KG	15	2008–2011
FAG AUTOMOBILTECHNIK AG	14	1998–2004
SCHAEFFLER TECHNOLOGIES AG	14	2012–2021
FAG KUGELFISCHER AG	12	2004–2009

Locations

Location	Patents	Span
Schweinfurt, DE	89	1976–2021
Pully, CH	4	2001–2012
Andelfingen, CH	2	1991–1992
Gerlingen, DE	2	1987–1990
Biebertal, DE	2	1977–1985