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Grein
Christoph Grein, Wheaton, IL US
| Patent application number | Description | Published |
|---|---|---|
| 20090321642 | PHOTODETECTOR WITH DARK CURRENT REDUCTION - A detector of incident infrared radiation has a first region with a first spectral response, and a second region with a second, different spectral response. The second absorption region is stacked on the first and may be separated therefrom by a region in which the chemical composition of the compound semiconductor is graded. Separate contacts are provided to the first and second absorption regions and a further common contact is provided so as to permit the application of either a bias voltage or a skimming voltage across the respective pn junctions. The detector may be operated such that a preselected one of the absorption regions responds to incident infrared radiation of a predetermined waveband while the other absorption region acts as a skimmer of dark current, thereby enhancing the signal to noise ratio of the detector. | 12-31-2009 |
| 20100096001 | HIGH EFFICIENCY MULTIJUNCTION II-VI PHOTOVOLTAIC SOLAR CELLS - A Group II-VI photovoltaic solar cell comprising at least two and as many as five subcells stacked upon one another. Each subcell has an emitter layer and a base layer, with the base of the first subcell being made of silicon, germanium, or silicon-germanium. The remaining subcells are stacked on top of the first subcell and are ordered such that the band gap gets progressively smaller with each successive subcell. Moreover, the thicknesses of each subcell are optimized so that the current from each subcell is substantially equal to the other subcells in the stack. Examples of suitable Group II-VI semiconductors include CdTe, CdSe, CdSeTe, CdZnTe, CdMgTe, and CdHgTe. | 04-22-2010 |
Christopher H. Grein, Wheaton, IL US
| Patent application number | Description | Published |
|---|---|---|
| 20100233842 | METHOD FOR CREATING NONEQUILIBRIUM PHOTODETECTORS WITH SINGLE CARRIER SPECIES BARRIERS - A method of forming a diode comprises the steps of forming an extraction region of a first conductivity type, forming an active region of a second conductivity type that is opposite the first conductivity type, and forming an exclusion region of the second conductivity type to be adjacent the active region. The active region is formed to be adjacent to the extraction region and along a reverse bias path of the extraction region and the exclusion region does not resupply minority carriers while removing majority carriers. At least one of the steps of forming the exclusion region and forming the extraction region includes the additional step of forming a barrier that substantially reduces the flow of the carriers that flow toward the active region, but does not rely on a diffusion length of the carriers to block the carriers. | 09-16-2010 |
Christoph H. Grein, Wheaton, IL US
| Patent application number | Description | Published |
|---|---|---|
| 20090261442 | NONEQUILIBRIUM PHOTODETECTORS WITH SINGLE CARRIER SPECIES BARRIERS - A photosensitive diode has an active region defining a majority carrier of a first conductivity type and a minority carrier of a second conductivity type. An extraction region is disposed on a first side of the active region and extracts minority carriers from the active region. It also has majority carriers within the extraction region flowing toward the active region in a condition of reverse bias. An exclusion region is disposed on a second side of the active region and has minority carriers within the exclusion region flowing toward the active region. It receives majority carriers from the active region. At least one of the extraction and exclusion region provides a barrier for substantially reducing flow of one of the majority carriers or the minority carriers, whichever is flowing toward the active region, while permitting flow of the other minority carriers or majority carriers flowing out of the active region. The barrier substantially reduces flow of the carriers without relying on diffusion length of the one carriers in order to reduce the flow. | 10-22-2009 |
Jeffery Grein, Cupertino, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090155242 | MAMMALIAN GENES; RELATED REAGENTS AND METHODS - Nucleic acids encoding mammalian, e.g., primate or rodent, genes, purified proteins and fragments thereof. Antibodies, both polyclonal and monoclonal, are also provided. Methods of using the compositions for both diagnostic and therapeutic utilities are provided. | 06-18-2009 |
| 20100104576 | MAMMALIAN GENES; RELATED REAGENTS AND METHODS - Nucleic acids encoding mammalian, e.g., primate or rodent, genes, purified proteins and fragments thereof. Antibodies, both polyclonal and monoclonal, are also provided. Methods of using the compositions for both diagnostic and therapeutic utilities are provided. | 04-29-2010 |
| 20110165165 | MAMMALIAN GENES; RELATED REAGENTS AND METHODS - Nucleic acids encoding mammalian, e.g., primate or rodent, genes, purified proteins and fragments thereof. Antibodies, both polyclonal and monoclonal, are also provided. Methods of using the compositions for both diagnostic and therapeutic utilities are provided. | 07-07-2011 |
Matthew E. Grein, Cambridge, MA US
| Patent application number | Description | Published |
|---|---|---|
| 20100025787 | System and method for providing a high frequency response silicon photodetector - A Silicon photodetector contains an insulating substrate having a top surface and a bottom surface. A Silicon layer is located on the top surface of the insulating substrate, where the Silicon layer contains a center region, the center region being larger in thickness than the rest of the Silicon layer. A top Silicon dioxide layer is located on a top surface of the center region. A left wing of the center region and a right wing of the center region are doped. The Silicon photodetector also has an active region located within the center region, where the active region contains a tailored crystal defect-impurity combination and Oxygen atoms. | 02-04-2010 |
Nicolas Grein, Kandel DE
| Patent application number | Description | Published |
|---|---|---|
| 20100089473 | Method for checking the operability of an actuator - A method of checking the operability of an actuator is provided. The actuator includes a control valve adjustable via an actuating drive by an actuating element, a position sensor detecting the actual position of the actuating element, and an electropneumatic position controller creating a pneumatic controlled variable depending on an actual position and a target position. The target position is provided to the actuating drive via an activated magnetic valve. The actuating element is moved over a section of an adjustment path for an execution of a partial-stroke test of the actuating element, the adjustment movement being detected. The magnetic valve is deactivated for a short time such that the actuating element is moved over only a section of the adjustment path. To facilitate the monitoring of the operability of the actuator, the partial-stroke test and the test of the magnetic valve are performed in a single test sequence. | 04-15-2010 |
Swen Grein, Bad Vilbel DE
| Patent application number | Description | Published |
|---|---|---|
| 20090028906 | Process for providing a temperature-stable muscle relaxant on the basis of the neurotoxic component of botulinum toxin in a solid form - The present invention relates to a method for providing a muscle relaxant at temperatures above 20° C., wherein said muscle relaxant is a solid dry composition comprising the neurotoxic component of botulinum toxin free of complexing proteins. | 01-29-2009 |