Inventor
Michael Steffen
Inventor
Stockdorf, DE
Overview
Patents· 33 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E02Dprimary
E02DFoundations19%
E01CConstruction of, or surfaces for, roads, sports grounds, or the like17%
E04GScaffolding12%
B06BMethods or apparatus for generating or transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency, e.g. for performing mechanical work in general5%
G08CTransmission systems for measured values, control or similar signals5%
E02FDredging3%
F16PSafety devices in general3%
B01FMixing, e.g. dissolving, emulsifying or dispersing2%
B05BSpraying apparatus2%
B08BCleaning in general2%
PatentTitleYear
10,344,439Soil compacting device201910,189,036Electric cartridge style pressure washer heater module20199,284,697'Ground-compacting device'20169,175,447'Soil compactor having direct drive'20158,974,153'Tamping device with synchronizing device and method for same'20158,905,625'High flow water return fitting for swimming pools and spas'20148,708,599'Soil compacting device having an air-cooled battery'20148,317,426'Soil compacting device'20128,123,432'Soil-compactor with power steering'20128,046,105'Vibrating plate system'20117,753,621'Vibrating plate comprising a remote control that is integrated into a draw bar'20107,498,932'Oil level monitoring system for an internal combustion engine'20097,498,691'Frequency converter for an immersion vibrator'20097,385,315'Frequency converter for an immersion vibrator'20087,044,413'Cable roller with a frequency converter device'20067,040,287'Fuel dosage device'20067,025,183'Pneumatic spring percussion mechanism with an electro-dynamically actuated driving piston'20066,997,648'Remote control device for automotive working devices'20066,960,013'High frequency immersion vibrator comprising a cooled electronic frequency converter'20056,892,950'Type plate comprising a storage device'20056,794,632'Soil compaction device having a light detector'20046,733,169'Poker vibrator with frequency transformer'20046,735,066'Protective device for an electric consumer'20046,651,608'Manually operated working device having a speed that is adjusted automatically'20036,619,832'Poker vibrator with frequency converter'20036,544,025'Concrete compacting device with vibration sensor and control unit'20036,530,359'Generating unit with engine speed control device'20036,474,300'Device and method for controlling the speed of an internal combustion engine'20026,435,767'Directional controls for vibrating plate'20026,285,925'Method and safety device for the remote-control of self-propelling working machines'20016,084,327'Internal vibrator supplied with current from a transformer'20005,450,068'Infrared remote control for soil compacting devices'19955,415,494'Process for determining and indicating the degree of ground compacting attained during work with a ground compacter'1995Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1995–2002Patents assigned to WACKER WERKE KG (6)· patent assignee history
1995–2000Based in Gauting, DE· patent location history
2001–2012Based in Stockdorf, DE· patent location history
2003–2009Patents assigned to WACKER CONSTRUCTION EQUIPMENT (15)· patent assignee history
2006–2019Based in Munich, DE· patent location history
2006–2009Based in München, DE· patent location history
2011–2019Patents assigned to WACKER NEUSON PROD GMBH & CO (7)· patent assignee history
2012–2016Patents assigned to STEFFEN MICHAEL (6)· patent assignee history
2014Patents assigned to AFSHAR REZA (1)· patent assignee history
2019Based in Dubuque, IA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| WACKER CONSTRUCTION EQUIPMENT | 15 | 2003–2009 |
| WACKER NEUSON PROD GMBH & CO | 7 | 2011–2019 |
| STEFFEN MICHAELself | 6 | 2012–2016 |
| WACKER WERKE KG | 6 | 1995–2002 |
| AFSHAR REZA | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Stockdorf, DE | 15 | 2001–2012 |
| Munich, DE | 9 | 2006–2019 |
| München, DE | 4 | 2006–2009 |
| Gauting, DE | 3 | 1995–2000 |
| Dubuque, IA, US | 1 | 2019 |