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HELD TIMOTHY J, VERMEERSCH MICHAEL L, XIE TAO, MILLER JASON D: MOTEURS THERMIQUES AVEC CYCLES EN CASCADE, HEAT ENGINES WITH CASCADE CYCLES. ECHOGEN POWER SYSTEMS, ECHOGEN POWER SYSTEMS, KIRBY EADES GALE BAKER, March 20, 2018: CA2794150 (16 worldwide citation)

Cascade thermodynamic energy conversion cycles use multiple power turbines in a working fluid circuit for conversion of waste heat energy, with each turbine inlet temperature optimized to operate in a temperature spectrum to use a greater amount of thermal energy from each cycle. Various accompanyin ...


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Ivan Poupyrev: Radar-based gesture recognition. Google, Colby Nipper, March 20, 2018: US09921660 (9 worldwide citation)

This document describes techniques using, and devices embodying, radar-based gesture recognition. These techniques and devices can enable a great breadth of gestures and uses for those gestures, such as gestures to use, control, and interact with computing and non-computing devices, from software ap ...


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Paul David Franklin, James Raymond Allard, Samuel Rubin Barrett, Jeremiah Brazeau, Jeffrey Allen Dzado, James Caleb Kirschner, David Levy, Brent James Lutz, Andrew Brenden Tinka, Colin Laird Lazier: Flexible media storage and organization in automated data storage systems. AMAZON TECHNOLOGIES, Davis Wright Tremaine, March 20, 2018: US09923966 (8 worldwide citation)

Techniques and systems for storing and retrieving data storage devices of a data storage system are disclosed. In some embodiments, inventory holders are used to store data storage devices used by a data storage system. When data is to be transacted with the data storage devices, mobile drive units ...


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Farshad Ghasripoor, Jeremy Grant Martin, David D Anderson, Alexander Patrick Theodossiou, Adam Rothschild Hoffman, Mark Richter, Patrick William Morphew: Pressure exchange system with motor system and pressure compensation system. ENERGY RECOVERY, Fletcher Yoder P C, March 20, 2018: US09920774 (6 worldwide citation)

A system includes a hydraulic energy transfer system configured to exchange pressures between a first fluid and a second fluid. The system also includes a motor system configured to power the hydraulic energy transfer system and a shaft coupling the motor system and the hydraulic energy transfer sys ...


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Benyamin Buller, Tasso Lappas, Alan Rick Lappen: Accurate three-dimensional printing. VELO3D, Wilson Sonsini Goodrich and Rosati, Ronit Buller, March 20, 2018: US09919360 (5 worldwide citation)

The present disclosure provides three-dimensional (3D) printing methods, apparatuses, and systems using, inter alia, a controller that regulates formation of at least one 3D object (e.g., in real time during the 3D printing); and a non-transitory computer-readable medium facilitating the same. For e ...


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Darren Rubin: Longitudinally sectioned firearms projectiles. March 20, 2018: US09921040 (5 worldwide citation)

The present invention relates to longitudinally sectioned bullets and methods that pertain to a projectile structured to be discharged from a firearm and comprising at least two separable longitudinal body sections and at least one binding element that holds the at least two longitudinal body sectio ...


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Henry L Graham II: Firearm attachment locking systems and methods. Rugged Design, Smith Moore Leatherwood, Thomas W Epting, March 20, 2018: US09921021 (5 worldwide citation)

The invention relates to devices for attaching or detaching a sound suppressor or an auxiliary device to a firearm. The device has a mount body that is attached by threads to a muzzle attachment device that is attached to the muzzle of a firearm. The muzzle attachment device has external mounting th ...


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Robert Doxey, Arunkumar Puppala, Wayne Patterson: Safe zones in tracking device environments. Tile, Fenwick & West, March 20, 2018: US09922531 (4 worldwide citation)

A tracking system determines if a tracking device is located within a safe zone based on whether a set of safe conditions are satisfied. The set of safe conditions includes a geographic boundary or a geographic location and corresponding threshold distance. The set of safe conditions can also includ ...


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Mitsuyoshi Ohno, Shinichi Ishida: Vehicle occupant protection device. TOYOTA JIDOSHA KABUSHIKI KAISHA, Oliff, March 20, 2018: US09919673 (4 worldwide citation)

A vehicle occupant protection device that includes: an airbag that is constructed as an integrated bag body that covers a head portion of a vehicle occupant and includes a forward-deploying portion, and a pair of left and right side-deploying portions which are connected to the forward-deploying por ...


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Errol Mark Rodda, Jacques Duparré: Array cameras incorporating independently aligned lens stacks. FotoNation Cayman, KPPB, March 20, 2018: US09924092 (4 worldwide citation)

Array cameras, and array camera modules incorporating independently aligned lens stacks are disclosed. Processes for manufacturing array camera modules including independently aligned lens stacks can include: forming at least one hole in at least one carrier; mounting the at least one carrier relati ...