Richard E Groff, 52215 Brookstone Way, Central, SC 29630

7799423, Sep 21, 2010

Nov 16, 2005

11/281768

Carmel Majidi - Berkeley CA, US
Richard Groff - Berkeley CA, US
Ronald S. Fearing - Orinda CA, US

The Regents of the University of California - Oakland CA

B32B 7/12

428343, 428357, 428364

Described herein are fabricated microstructures to adhere in shear to a contact surface. A fabricated microstructure comprises a substrate and a plurality of nano-fibers attached to the substrate. The nano-fibers have an elasticity modulus E, an interfacial energy per unit length of contact w, a length L, a radius R, and are oriented at an angle θrelative to the substrate. The length L of the nano-fibers is greater than 0. 627θR(E/w)with θin radians. Also described herein is a method of forming a fabricated microstructure to adhere in shear to a contact surface and a method of adhering in shear a fabricated microstructure to a contact surface.

7914912, Mar 29, 2011

Nov 10, 2005

11/271103

Ronald S. Fearing - Orinda CA, US
Abraham Bachrach - Palo Alto CA, US
Richard Groff - Berkeley CA, US
Carmel Majidi - Berkeley CA, US

The Regents of the University of California - Oakland CA

B32B 15/00

4286921, 428141

Described herein is a microstructure having a substrate and a plurality of nano-fibers attached to the substrate. Each nano-fiber moves between the first and second states without an external mechanical load being applied to the nano-fibers. Each nano-fiber is configured to move between a first state and a second state in response to applied electricity, magnetism, chemical solution, heat, or light. Each nano-fiber is straight in the first state and curved in the second state, and when the nano-fibers are in the second state and in contact with a contact surface, the nano-fibers adhere to the contact surface.

8309201, Nov 13, 2012

Aug 22, 2007

11/843619

Carmel Majidi - Berkeley CA, US
Richard Groff - Berkeley CA, US
Ronald S. Fearing - El Cerrito CA, US

The Regents of the University of California - Oakland CA

B32B 5/00

428141, 156 61

A fabricated nano-structure includes a substrate, a supporting stalk, a node, and at least two spatular plate portions. The supporting stalk has a first end opposite a second end. The first end of the supporting stalk is connected to the substrate. The supporting stalk has a diameter range of about 50 nanometers to about 2 microns. A node is disposed at the second end of the supporting stalk. At least two spatular plate portions are connected to the node. The at least two spatular plate portions have planar geometries and are radially distributed about the node. The at least two spatular plate portions has a ratio of a maximum plate thickness to a maximum plate length of at most about 1:20. The maximum plate length is measured along a line from a boundary of the spatular plate portion to a centroid of the node. The maximum plate length is at least about 100 nanometers.

2010006, Mar 11, 2010

Nov 17, 2006

11/601528

Carmel Majidi - Berkeley CA, US
Richard E. Groff - Central SC, US
Ronald S. Fearing - Orinda CA, US
Steven D. Jones - Lafayette CA, US

The Regents of the University of California - Oakland CA

B32B 5/02
B29C 41/42
B05D 1/12

428 91, 264334, 427180, 427206

A fabricated microstructure includes a substrate, a primary fiber, and a plurality of base fibers. The primary fiber has a width less than about 5 microns. Each base fiber of the plurality of base fibers has a first end attached to the primary fiber and a second end attached to the substrate. Each base fiber has a width less than the width of the primary fiber.