Duc V Tran

US Patent:

20110104806, May 5, 2011

Filed:

Jun 24, 2009

Appl. No.:

12/991020

Inventors:

Juergen E.W. Polle - Brooklyn NY, US
Duc Tran - Brooklyn NY, US

Assignee:

Research Foundation of the City Univeristy of New York - New York NY

International Classification:

C12N 15/63
C07K 14/00
C07K 14/405
C12N 15/70
C12N 15/79
C12N 1/13

US Classification:

435471, 530350, 530370, 4352572

Abstract:

The invention relates to isolated polypeptides that include amino acid sequences within botryococcene synthase from different algal species. In another aspect, the invention relates to a method for increasing the production level of a botryococcene hydrocarbon molecule in a cell. The method includes increasing expression of a polynucleotide sequence that encodes botryococcene synthase in the cell. In a further aspect, the invention relates to an algal cell having a polynucleotide sequence that is genetically engineered to express a higher level of botryococcene synthase than a corresponding wild type algal cell, wherein the cell produces an increased level of a botryococcene hydrocarbon molecule than a corresponding wild type algal cell.

US Patent:

20120052584, Mar 1, 2012

Filed:

Apr 24, 2009

Appl. No.:

12/989189

Inventors:

Juergen Polle - Brooklyn NY, US
Duc Tran - Brooklyn NY, US

Assignee:

The City University of New York represented by the Research Foundation of the City University of NY - New York NY

International Classification:

C12N 1/13
C12N 15/79

US Classification:

435471, 4352572

Abstract:

The invention relates to a method for increasing the production level of isoprenoids in an algal cell. The method includes increasing expression of a polynucleotide sequence that encodes 4-hydroxy-3-methylbut-2-enyl diphosphate reductase (IDS) in the algal cell. In another aspect, the invention relates to a method for increasing the production level of carotenoids in an algal cell. The method includes increasing expression of polynucleotide sequence that encodes phytoene desaturases (PDS) in the algal cell. In a further aspect, the invention relates to an algal cell having a polynucleotide sequence that is genetically engineered to express a higher level of IDS or PDS than a corresponding wild type algal cell, wherein the cell produces an increased level of isoprenoids or carotenoids, respectively, than a corresponding wild type algal cell.

US Patent:

48579424, Aug 15, 1989

Filed:

Dec 28, 1987

Appl. No.:

7/138427

Inventors:

Patrick Murphy - Stamford CT
Duc H. Tran - Bridgeport CT

Assignee:

Pitney Bowes Inc. - Stamford CT

International Classification:

G01D 1510

US Classification:

346 76PH

Abstract:

In apparatus for thermally transferring ink from a ribbon, having backing and ink donor layers, to a letter, wherein the apparatus includes a frame, a thermal printhead and a printhead backing roller, there is provided an improvement for urging a ribbon and letter into engagement with one another. The improvement includes the printhead backing roller connected to the frame for rotation in engagement with a letter fed between the roller and a ribbon, and the printhead backing roller including a body portion adapted to flex when engaging a letter for urging a letter into contact with the ink donor layer of a ribbon. Moreover, it is of the invention that the roller body portion include at least one channel formed therein.