Inventor
Ralf Christmann
Inventor
Kaiserslautern, DE
Overview
Patents· 15 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F02Bprimary
F02BInternal-combustion piston engines18%
Y02TClimate change mitigation technologies related to transportation15%
F01DNon-positive displacement machines or engines, e.g. steam turbines11%
F05DIndexing scheme for aspects relating to non-positive-displacement machines or engines, gas-turbines or jet-propulsion plants11%
F02CGas-turbine plants10%
Y10TTechnical subjects covered by former us classification8%
F02DControlling combustion engines5%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof3%
F04DNon-positive-displacement pumps3%
F16DCouplings for transmitting rotation3%
PatentTitleYear
10,302,123Coupling rod201910,066,540Control arrangement of an exhaust-gas turbocharger20189,995,312Exhaust-gas turbocharger20189,909,454'Exhaust-gas turbocharger'20189,856,752'Exhaust-gas turbocharger and method for manufacturing the same'20189,726,081'Exhaust-gas turbocharger'20179,708,984'Regulating method for a turbocharger of an internal combustion engine, and turbocharger'20179,488,459'Position sensor module'20169,359,909'Exhaust-gas turbocharger'20169,255,582'Exhaust-gas turbocharger for use with an internal combustion engine'20169,222,585'Valve control device'20158,733,100'Valve control device'20148,629,675'Linear sensor'20148,627,714'Method for preventing the rupture of a compressor wheel and/or turbine wheel of an exhaust-gas turbocharger'20145,369,695'Method of redirecting a telephone call to an alternate destination'1994Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1994Patents assigned to AT & T CORP (1)· patent assignee history
1994Based in Irving, TX, US· patent location history
2014–2019Patents assigned to BORGWARNER INC (14)· patent assignee history
2014–2018Patents assigned to CHRISTMANN RALF (9)· patent assignee history
2014–2019Based in Kaiserslautern, DE· patent location history
2016–2018Patents assigned to HEIDINGSFELDER LEIF (2)· patent assignee history
2016–2018Patents assigned to RAMB THOMAS (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BORGWARNER INC | 14 | 2014–2019 |
| CHRISTMANN RALFself | 9 | 2014–2018 |
| HEIDINGSFELDER LEIF | 2 | 2016–2018 |
| RAMB THOMAS | 2 | 2016–2018 |
| AT & T CORP | 1 | 1994 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kaiserslautern, DE | 14 | 2014–2019 |
| Irving, Texas, US | 1 | 1994 |