Inventor
David R. Crecelius
Inventor
Noblesville, IN, US
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B60Kprimary
B60KArrangement or mounting of propulsion units or of transmissions in vehicles14%
H02KDynamo-electric machines14%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters11%
Y02TClimate change mitigation technologies related to transportation11%
B60YIndexing scheme relating to aspects cross-cutting vehicle technology8%
F02NStarting of combustion engines5%
F16HGearing5%
H02JElectric power networks5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
A63FCard, board, or roulette games3%
PatentTitleYear
10,879,749Electric motor and stator cooling apparatus202010,516,323Segmented switched reluctance motor for powertrain electrification20199,862,289'Drive system with limited slip electric differential drive unit'20189,669,698'Electric hybrid drive for retrofitting to internal combustion vehicles'20179,651,131'Clutch system configured to enhance engagement performance of clutch teeth'20177,372,185'High-intensity discharge lighting system and alternator power supply'20087,180,216'High-intensity discharge lighting system and alternator power supply'20076,414,832'Thermal protection device for a remotely regulated vehicle alternator'20026,396,161'Integrated starter alternator troller'20026,359,439'Compression sense ignition system with fault mode detection and having improved capacitive sensing'20026,081,084'Sensorless power angle control for a vehicle alternator'20005,811,957'Speed sensorless hybrid vector controlled induction motor with zero speed operation'19985,354,058'Board game'1994Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1994Patents assigned to CRECELIUS DAVID R (1)· patent assignee history
1994Based in Delaware, OH, US· patent location history
1998–2002Based in Indianapolis, IN, US· patent location history
2000–2002Patents assigned to DELCO REMY AMERICA INC (3)· patent assignee history
2000–2008Based in Noblesville, IN, US· patent location history
2002Patents assigned to DELPHI TECH INC (1)· patent assignee history
2007–2008Patents assigned to LIGHT ENGINEERING INC (2)· patent assignee history
2017–2020Patents assigned to AMERICAN AXLE & MFG INC (4)· patent assignee history
2017–2020Based in Cicero, IN, US· patent location history
2017Based in Fishers, IN, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| AMERICAN AXLE & MFG INC | 4 | 2017–2020 |
| DELCO REMY AMERICA INC | 3 | 2000–2002 |
| LIGHT ENGINEERING INC | 2 | 2007–2008 |
| CRECELIUS DAVID Rself | 1 | 1994 |
| DELPHI TECH INC | 1 | 2002 |
Locations
| Location | Patents | Span |
|---|---|---|
| Noblesville, IN, US | 5 | 2000–2008 |
| Cicero, IN, US | 4 | 2017–2020 |
| Indianapolis, IN, US | 2 | 1998–2002 |
| Fishers, IN, US | 1 | 2017 |
| Delaware, OH, US | 1 | 1994 |