Inventor · disambiguated record
David E. E. Carmein
Also filed as: CARMEIN DAVID · CARMEIN DAVID E · CARMEIN DAVID E E · CARMEIN DAVID EDWARD ENGER
12 granted patents·2 pending applications·1,819 citations·filing 1987–2022
94Inventor score
Top patents by PatentIndex Score
14 records- 0197US6152854AOmni-directional treadmillFiled 1999·Granted Nov 28, 2000·324 cites·36 claims
- 0297US5980256AVirtual reality system with enhanced sensory apparatusFiled 1996·Granted Nov 9, 1999·687 cites·28 claims
- 0395US5562572AOmni-directional treadmillFiled 1995·Granted Oct 8, 1996·242 cites·20 claims
- 0495US5490784AVirtual reality system with enhanced sensory apparatusFiled 1993·Granted Feb 13, 1996·242 cites·11 claims
- 0594US7780573B1Omni-directional treadmill with applicationsCARMEIN DAVID E E·Filed 2007·Granted Aug 24, 2010·155 cites·34 claims
- 0693US5106500APortable water purification system including a filter cleaning mechanismRECOVERY ENG INC·Filed 1990·Granted Apr 21, 1992·97 cites·13 claims
- 0777US4793153AEnergy recovery apparatusRECOVERY ENG INC·Filed 1987·Granted Dec 27, 1988·35 cites·7 claims
- 0872US11724426B2Methods and systems for producing a product utilizing a linerPROTOLABS INC·Filed 2021·Granted Aug 15, 2023·0 cites·16 claims
- 0966US11130268B1Methods and systems for producing a product utilizing a linerPROTOLABS INC·Filed 2020·Granted Sep 28, 2021·0 cites·8 claims
- 1065US11911653B2Omnidirectional moving surface including motor driveOMNIPAD INC·Filed 2019·Granted Feb 27, 2024·2 cites·20 claims
- 1159US4902207AEnergy recovery apparatusRECOVERY ENG INC·Filed 1988·Granted Feb 20, 1990·18 cites·10 claims
- 1257US2023292941A1Traction Pillow SystemCARMEIN DAVID EDWARD ENGER·Filed 2022·Application pending·0 cites
- 1349US4945725ADifferential-area piston type mixed-phase motorsRECOVERY ENG INC·Filed 1988·Granted Aug 7, 1990·17 cites·12 claims
- 1447US2005148432A1Combined omni-directional treadmill and electronic perception technologyFiled 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →