Mark J Hahn

US Patent:

8413087, Apr 2, 2013

Filed:

Mar 26, 2010

Appl. No.:

12/748172

Inventors:

Guruprasad G. Rao - Pleasanton CA, US
Mark Hahn - Fremont CA, US
Laurent Volpe - San Jose CA, US

Assignee:

Cadence Design Systems, Inc. - San Jose CA

International Classification:

G06F 17/50

US Classification:

716105

Abstract:

Disclosed is an improved approach for managing, tracking, and querying hierarchical data in layouts. According to some aspects, hierarchical grids are employed utilizing a scheme that organizes physical objects into a set of gradually refined grids that avoids the need to maintain duplicates while enhancing the desirable characteristics of existing schemes, including fast query times, fast data structure initialization and reduced memory footprint. Each grid-cell may be further partitioned into sub-containers to more efficiently provide space pruning during query operations. According to one approach, structures maintained to track existence of objects in a descendent hierarchy.

US Patent:

8413093, Apr 2, 2013

Filed:

Dec 23, 2010

Appl. No.:

12/978302

Inventors:

Guruprasad G. Rao - Pleasanton CA, US
Mark Hahn - Fremont CA, US
Laurent Volpe - San Jose CA, US

Assignee:

Cadence Design Systems, Inc. - San Jose CA

International Classification:

G06F 17/50

US Classification:

716110

Abstract:

Disclosed is an improved approach for managing, tracking, and querying hierarchical data in layouts. According to some aspects, hierarchical grids are employed utilizing a scheme that organizes physical objects into a set of gradually refined grids that avoids the need to maintain duplicates while enhancing the desirable characteristics of existing schemes, including fast query times, fast data structure initialization and reduced memory footprint. Each grid-cell may be further partitioned into sub-containers to more efficiently provide space pruning during query operations. According to one approach, structures maintained to track existence of objects in a descendent hierarchy.

US Patent:

8453091, May 28, 2013

Filed:

Dec 23, 2010

Appl. No.:

12/978216

Inventors:

Guruprasad G. Rao - Pleasanton CA, US
Mark Hahn - Fremont CA, US
Laurent Volpe - San Jose CA, US

Assignee:

Cadence Design Systems, Inc. - San Jose CA

International Classification:

G06F 17/50

US Classification:

716118

Abstract:

Disclosed is an improved approach for managing, tracking, and querying hierarchical data in layouts. According to some aspects, hierarchical grids are employed utilizing a scheme that organizes physical objects into a set of gradually refined grids that avoids the need to maintain duplicates while enhancing the desirable characteristics of existing schemes, including fast query times, fast data structure initialization and reduced memory footprint. Each grid-cell may be further partitioned into sub-containers to more efficiently provide space pruning during query operations. According to one approach, structures maintained to track existence of objects in a descendent hierarchy.

US Patent:

20120024411, Feb 2, 2012

Filed:

Aug 10, 2011

Appl. No.:

13/206873

Inventors:

Mark Hahn - Oak Harbor WA, US
Scott J. Ellis - Anacortes WA, US
Eric Beemer - Bellingham WA, US

Assignee:

IDEX Health & Science LLC - Oak Harbor WA

International Classification:

F16L 11/00
F16L 37/00
B23P 11/00
F16L 9/14

US Classification:

138109, 138140, 285309, 29428

Abstract:

A biocompatible tube that can be used in a liquid chromatography system is described. The tube can have flanged or straight ends, and can be used in conjunction with one or more fitting, assembly.

US Patent:

20130233053, Sep 12, 2013

Filed:

Nov 2, 2012

Appl. No.:

13/668011

Inventors:

Craig Graham - Anacortes WA, US
Mark Hahn - Oak Harbor WA, US

Assignee:

IDEX Health & Science LLC - Oak Harbor WA

International Classification:

F16L 37/244
G01N 30/88

US Classification:

73 2335, 137 1509, 285330, 73 6152, 250281, 738658

Abstract:

A torque limited fitting is provided having a head and a body, which in certain embodiments may be assembled by an operator. The body of the torque limited fitting has a passageway therethrough for receiving and removably holding tubing. The torque limited fitting may be adapted for use with a flat bottom port, such as in an analytical instrument, like liquid chromatography, gas chromatography, ion chromatography, or in in vitro diagnostic systems.

US Patent:

20170051860, Feb 23, 2017

Filed:

Mar 25, 2016

Appl. No.:

15/057915

Inventors:

- Oak Harbor WA, US
Craig Graham - Anacortes WA, US
Mark Hahn - Oak Harbor WA, US

International Classification:

F16L 37/244
F16L 15/08
B01L 3/00
G01N 30/60

Abstract:

A torque limited fitting is provided having a head and a body, which in certain embodiments may be assembled by an operator. The body of the torque limited fitting has a passageway therethrough for receiving and removably holding tubing. The torque limited fitting may be adapted for use with a flat bottom port, such as in an analytical instrument, like liquid chromatography, gas chromatography, ion chromatography, or in in vitro diagnostic systems.

US Patent:

20140260534, Sep 18, 2014

Filed:

Mar 17, 2014

Appl. No.:

14/216793

Inventors:

Mark Hahn - Oak Harbor WA, US
Eric Beemer - Anacortes WA, US

Assignee:

IDEX Health & Science LLC - Middleboro MA

International Classification:

B01D 15/08
H01J 49/02
G01N 30/02

US Classification:

73 2335, 2101982, 264628, 73 6152, 250281

Abstract:

An improved biocompatible filter for use in liquid chromatography systems such as HPLC or UHPLC The present disclosure addresses the problem of particles bypassing a filter in a liquid chromatography application by design features in the interface between the frit filter and ring that form an improved seal between the ring and frit and prevent leakage around the filter in high measure chromatography. Design features also include frit filters with an internal particle size gradient for pre-column separation activity during filtration.

US Patent:

20140123819, May 8, 2014

Filed:

Nov 5, 2013

Appl. No.:

14/072092

Inventors:

- Oak Harbor WA, US
Craig Graham - Anacortes WA, US
Mark Hahn - Oak Harbor WA, US

Assignee:

IDEX Health & Science LLC - Oak Harbor WA

International Classification:

B25B 23/142
B25B 23/00
B25B 13/48

US Classification:

81476, 81467, 29428

Abstract:

A torque limiting tool is provided that has a handle and a body, which in certain embodiments may be assembled by an operator. The body of the torque limiting tool has a side portion with a tubing slot for allowing tubing to exit the torque limiting tool. The handle and body have one or more abutments, designed to allow the torque limiting tool to deliver a maximum amount of torque. The torque limiting tool may be used with an adapter to allow coupling with a variety of fitting sizes and shapes. The torque limiting tool may be adapted for use with a flat bottom port, such as in an analytical instrument, like liquid chromatography, gas chromatography, ion chromatography, or in in vitro diagnostic systems.