公开(公告)号：US11818805B2

公开(公告)日：2023-11-14

申请号：US16745646

申请日：2020-01-17

申请人： Vorbeck Materials Corp.

发明人： John S Lettow ,  Sriram Manivannan ,  Mathew A Hudspeth ,  Trentice V Bolar

IPC分类号： H04W88/08 ,  H04B17/318 ,  H04W52/24 ,  H04W76/15 ,  H04W76/14 ,  G06F1/16 ,  H04W36/30

CPC分类号： H04W88/08 ,  G06F1/163 ,  H04B17/318 ,  H04W36/30 ,  H04W52/245 ,  H04W76/14 ,  H04W76/15

摘要： A wearable apparatus includes an antenna affixed to a surface of the apparatus. A device is in electrical communication with the antenna. A control circuit is in electrical communication with the device and a communications device. The antenna includes a composition that includes a polymer and carbonaceous material made up of individual graphene sheets that are present in the polymer in a three-dimensional percolated network. A mobile device is communicatively coupled to a cellular RF source via a first wireless signal. The control circuit is configured to communicate, using the communications device, with the mobile device via a third RF signal; communicate, using the device, with the RF source via a second RF signal; and cause the mobile device to communicate with the RF source via the third RF signal when the second RF signal is greater than the first RF signal.

公开(公告)号：US20180264895A1

公开(公告)日：2018-09-20

申请号：US15540133

申请日：2016-01-27

申请人： VORBECK MATERIALS CORP.

发明人： John S Lettow ,  Trentice V Bolar

IPC分类号： B60C11/24 ,  G07C5/00 ,  G07C5/08 ,  B60C23/04

CPC分类号： B60C11/246 ,  B60C11/243 ,  B60C23/0427 ,  G07C5/008 ,  G07C5/085

摘要： Embodiments of the present invention relate to tracks and a related monitoring system. In some embodiments of these teachings, the track can include one or more ground contacting elements (“GCE”) having rubber. Within each GCE, one or more integrated circuits (“IC”) are positioned. One or more conductive elements are positioned within each GCE. Each conductive elements is positioned external to but in electrical communication with of the ICs. Each conductive element is applied on an elastomer. Each conductive element includes one or more conductive compositions having fully exfoliated individual graphene sheets.

公开(公告)号：US10103446B2

公开(公告)日：2018-10-16

申请号：US15062974

申请日：2016-03-07

申请人： VORBECK MATERIALS CORP.

发明人： John S Lettow ,  Sriram Manivanna ,  Larry Hurzon ,  Trentice V Bolar

IPC分类号： H01Q15/08 ,  H01Q25/00

摘要： Embodiments of the present invention relate to graphene-based Rotman lenses. In an embodiment, a lens is formed on a surface of a dielectric plate. The lens comprises a composition having individual sheets of graphene. The lens includes a plurality of first transmission lines extending from a first lens contour and a plurality of second transmission lines extending from a second lens contour. The plurality of first transmission lines each terminate at a first port. The plurality of second transmission lines each terminate at a second port. The first contour and the second contour are positioned opposite each other. The first port and/or the second port has a width of λ/2 or less. The individual graphene sheets form a three-dimensional interconnected network within the composition.