Brian W Chan, 392239 32Nd Ave, San Francisco, CA 94116

7617891, Nov 17, 2009

Oct 11, 2005

11/247918

Brian Chan - Millbrae CA, US
Julio Guerrero - Cambridge MA, US
Anette Hosoi - Cambridge MA, US

Schlumberger Technology Corporation - Ridgefield CT
Massachusetts Institute of Technology - Cambridge MA

B62D 57/02
E21B 43/00

180 71, 180 81, 180 85, 180 9, 180 21, 180313, 166 66, 166 50, 166 55, 299 31, 305 60, 305404

A self-propelled mechanical crawler adapted to move on a medium. One example of such a crawler includes a foot, a wave generator adapted to drive a periodic wave in the foot, and a wave transfer mechanism coupled between the wave generator and the foot. The wave transfer mechanism may be adapted to translate the periodic wave produced by the wave generator into a corresponding periodic deformation in the foot so as to generate forces in the medium to propel the crawler.

7938210, May 10, 2011

Jun 15, 2005

11/153601

Patrik Alwin Künzler - Cambridge MA, US
Peter Schmitt - Loef-Katttenes, DE
Brian Chan - Cambridge MA, US
Philip A. Liang - Cambridge MA, US
Franco H. Vairani - Cambridge MA, US
Axel Kilian - Cambridge MA, US
Ryan C Chin - Boston MA, US
William J. Mitchell - Cambridge MA, US

Massachusetts Institute of Technology - Cambridge MA

B60K 17/14
B60G 9/00
B62D 7/18

180 6551, 180 656, 2801241, 280 93512, 267 68

An in-the-wheel suspension system including a drive mechanism for coupling the rotational motion of a wheel rim to the drive shaft of an electric motor and for supporting the wheel rim with respect to the vehicle chassis using one or more springs and dampers. In a hubless version, a spring member supports extend between a frame member attached to the chassis and a bearing member that engages with the rim. In a version used with a wheel hub, the hub is supported by an axle and the spring member supports the axle in movable relation to the frame member. A pivoting support arm that is attached to the axel and pivots about a pivot point attached to the frame member at a location spaced from the wheel axis may be used to support the hub. A Peaucellier linkage may be used to support the axle for movement along a straight line vertical path, the linkage being attached to the frame member at two fixed pivot points. The wheel suspension units perform all the traditional drivetrain functions independently and can be attached to the chassis in a manner that allows for easy removal.

2008012, May 22, 2008

Nov 22, 2006

11/562880

Brian Chan - Palo Alto CA, US
Steve Nelson - San Jose CA, US

G06F 15/16

709204

Apparatus having corresponding methods and computer-readable media comprises an input circuit to receive registration messages from virtual meeting servers, wherein each registration message comprises a network address of the respective virtual meeting server and an identification string for the respective virtual meeting server; a memory to store an association for each of the virtual meeting servers between the respective network addresses and the respective identification strings; wherein the input circuit receives virtual meeting invitation acceptance messages each comprising one of the identification strings; a processor to select the network addresses associated with the identification strings in the virtual meeting invitation acceptance messages; and an output circuit to transmit a redirect message in response to each of the virtual meeting invitation acceptance messages, wherein each of the redirect messages comprises the network address associated with the identification string in the corresponding virtual meeting invitation acceptance message.

2008031, Dec 18, 2008

Jun 13, 2007

11/762665

Brian Chan - Castro Valley CA, US
Steve Nelson - San Jose CA, US
Victor Ivashin - Danville CA, US

G06F 7/04

726 28

Apparatus having corresponding methods and computer-readable media comprise an input circuit to receive, from a license management server, a check-in sequence representing a plurality of different check-in times; a processor to execute a software product comprising an application, and a client license management module to add timestamps to a check-in record at the check-in times; and an output circuit to transmit the check-in record to the license management server; wherein the license management server performs a comparison between the check-in record and at least one of the check-in sequence, and an earlier check-in record previously sent by the client license management module to the license management server; and wherein the license management server transmits a violation message to the client license management module when the comparison fails; and wherein the client license management module disables the application based on the violation message.

2018031, Nov 8, 2018

May 3, 2018

15/970283

- Somerville MA, US
Luke Plummer - Belmont MA, US
Brian Chan - Cambridge MA, US
Maxim Lobovsky - Cambridge MA, US
Shane Wighton - Cambridge MA, US
Ian Ferguson - Cambridge MA, US

Formlabs, Inc. - Somerville MA

B29C 64/259
B29C 64/153
B29C 64/393
B33Y 30/00

Techniques for producing removable build modules for additive fabrication devices are described. According to some aspects, a removable build module may comprise an enclosure having an open top, a fabrication platform arranged in an interior of the enclosure, and at least one actuator incorporated into the enclosure and configured to move the fabrication platform towards and away from the open top of the enclosure.

2018031, Nov 8, 2018

May 3, 2018

15/970247

- Somerville MA, US
Brian Chan - Cambridge MA, US

Formlabs, Inc. - Somerville MA

B29C 64/364
B29C 64/153
B33Y 30/00

Techniques for illuminating an interior of an enclosure in an additive fabrication device are described. According to some aspects, an additive fabrication device includes a build region into which source material may be disposed and at least one source of electromagnetic radiation configured to direct radiation onto the source material in the build region to thereby form a layer of solid material from the source material. A first heater may be included that is configured to heat at least a portion of the source material in the build region. In some embodiments, an enclosure surrounds the build region and comprises a refractive aperture. In some embodiments, at least one light source is arranged to direct light into the enclosure through the refractive aperture.