Jonathan M Protz

US Patent:

20090275031, Nov 5, 2009

Filed:

Mar 31, 2009

Appl. No.:

12/383996

Inventors:

Maria E. Tanner - Wake Forest NC, US
Elizabeth A. Vasievich - Chapel Hill NC, US
Jonathan M. Protz - Durham NC, US
Thomas H. Labean - Hillsborough NC, US

Assignee:

Duke University - Durham NC

International Classification:

C12Q 1/68
C12Q 1/00
C12Q 1/48
C12P 19/34
C12N 15/74
C12N 1/20
C12N 1/21
G01N 33/68
G01N 33/50
C07K 2/00
C07H 21/00
C12N 9/00

US Classification:

435 6, 435 4, 435 15, 435 915, 435 9152, 435471, 4352521, 4352523, 436 86, 436 94, 530300, 536 253, 435183

Abstract:

Methods for measuring environmental parameters using chemical recording are provided. In some embodiments, the methods include generating a polymer comprising an ordered series of chemical units, wherein the position and number of each chemical unit in the polymer is indicative of a reading of the environmental state variable at a given point in time. The presently disclosed subject matter also provides compositions that can be employed in and/or that employ the disclosed methods for recording environmental state variables.

US Patent:

20090284126, Nov 19, 2009

Filed:

Oct 24, 2008

Appl. No.:

12/258107

Inventors:

Jonathan Michael PROTZ - Durham NC, US
Maarc Stephen Verdiel - Chicago IL, US
David James Fields - Burke VA, US

International Classification:

H01J 63/04

US Classification:

313495

Abstract:

The present invention relates to the formation of a vacuum electronics circuit by the fusion bonding of multiple substrate wafers, e.g., silicon, copper, or other suitable conductive material, each etched using DRIE, cut using EDM, or machined by other suitable means. Other aspects of the invention relate to the alignment of a cathode with tube by fusion bonding the cathode wafer to a tube built using the fabrication methods described herein. Yet other aspects involve the alignment of dies or wafers during the fabrication of a vacuum electronics device using the “lego” technique outlined herein. In yet other aspects, fabrication methods are described.

US Patent:

20110154822, Jun 30, 2011

Filed:

Dec 29, 2010

Appl. No.:

12/980740

Inventors:

Jonathan M. Protz - Durham NC, US
William G. Gardner - Durham NC, US
Justin W. Jaworski - Tampa FL, US
Andrew P. Camacho - Miami FL, US
Hardy S. Shen - Durham NC, US
David J. Fields - Burke VA, US
Stefan Oliver Pelekies - , US

International Classification:

F01K 19/08
F01K 25/00
F28D 15/00

US Classification:

60651, 60670, 60654, 16510419

Abstract:

Heat engines suitable for large-scale or micro-scale fabrication supply power from a power turbine. The power turbine is driven in part by an ejector in which a working fluid is utilized as a motive flow. Fuel utilized for combustion may also be utilized as a phase-changing working fluid and as the motive flow driving the ejector. Heat exchangers particularly suitable for micro-scale implementation are also disclosed.