Inventor
David Carmein
Inventor
Ann Arbor, MI, US
Overview
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Nprimary
H02NElectric machines not otherwise provided for10%
A63BApparatus for physical training, gymnastics, swimming, climbing, or fencing8%
G06FElectric digital data processing7%
G09BEducational or demonstration appliances7%
B29CShaping or joining of plastics5%
F03DWind motors5%
F25BRefrigeration machines, plants or systems5%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
A61HPhysical therapy apparatus, e.g. devices for locating or stimulating reflex points in the body3%
PatentTitleYear
11,130,268Methods and systems for producing a product utilizing a liner20219,194,368'System and method for controlling electric fields in electro-hydrodynamic applications'20158,878,150'Electro-hydrodynamic wind energy system'20148,796,655'System and method for controlling electric fields in electro-hydrodynamic applications'20148,779,404'Electro-hydrodynamic wind energy system'20148,502,181'Electro-hydrodynamic wind energy system'20138,421,047'Electro-hydrodynamic wind energy system'20137,780,573'Omni-directional treadmill with applications'20107,244,323'Method and materials to inhibit object consolidation in localized areas'20076,463,349'Ultrasonic object consolidation system and method'20026,152,854'Omni-directional treadmill'20005,980,256'Virtual reality system with enhanced sensory apparatus'19995,562,572'Omni-directional treadmill'19965,490,784'Virtual reality system with enhanced sensory apparatus'19965,106,500'Portable water purification system including a filter cleaning mechanism'19924,945,725'Differential-area piston type mixed-phase motors'19904,902,207'Energy recovery apparatus'19904,793,153'Energy recovery apparatus'1988Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1988–1992Patents assigned to RECOVERY ENG INC (4)· patent assignee history
1988–1996Based in Minneapolis, MN, US· patent location history
1999–2000Based in Bloomington, MN, US· patent location history
2002–2007Patents assigned to SOLIDICA INC (2)· patent assignee history
2002–2015Based in Ann Arbor, MI, US· patent location history
2013–2015Patents assigned to ACCIO ENERGY INC (6)· patent assignee history
2013–2015Patents assigned to CARMEIN DAVID (3)· patent assignee history
2013–2015Patents assigned to WHITE DAWN (3)· patent assignee history
2021Based in Mound, MN, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ACCIO ENERGY INC | 6 | 2013–2015 |
| RECOVERY ENG INC | 4 | 1988–1992 |
| CARMEIN DAVIDself | 3 | 2013–2015 |
| WHITE DAWN | 3 | 2013–2015 |
| SOLIDICA INC | 2 | 2002–2007 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ann Arbor, MI, US | 9 | 2002–2015 |
| Minneapolis, Minnesota, US | 6 | 1988–1996 |
| Bloomington, Minnesota, US | 2 | 1999–2000 |
| Mound, Minnesota, US | 1 | 2021 |