Sarah M Simon

US Patent:

20130248367, Sep 26, 2013

Filed:

Mar 14, 2013

Appl. No.:

13/804085

Inventors:

SARAH SIMON - Baltimore MD, US

Assignee:

LOCKHEED MARTIN CORPORATION - BETHESDA MD

International Classification:

B01D 61/42

US Classification:

204518, 204627

Abstract:

A molecular separation device includes a chamber having an inlet and an outlet through which flows an aqueous suspension and a porous separation membrane positioned in the chamber substantially orthogonally to the flow of the aqueous suspension. An electrical charging device connects to the separation membrane to apply a periodic electric charge so as to collect components blocked by the porous separation membrane. Related methods are also disclosed.

US Patent:

20190143276, May 16, 2019

Filed:

Jan 14, 2019

Appl. No.:

16/247207

Inventors:

- Bethesda MD, US
Sarah M. Simon - Baltimore MD, US
Steven Lloyd Sinsabaugh - Abingdon MD, US

Assignee:

LOCKHEED MARTIN CORPORATION - Bethesda MD

International Classification:

B01D 65/10
B01D 67/00
B01D 69/12

Abstract:

A method for the repair of defects in a graphene or other two-dimensional material through interfacial polymerization.

US Patent:

20170296972, Oct 19, 2017

Filed:

Apr 14, 2016

Appl. No.:

15/099482

Inventors:

- Bethesda MD, US
Peter V. Bedworth - Los Gatos CA, US
Sarah M. Simon - Baltimore MD, US
Jacob Louis Swett - Redwood City CA, US
Scott E. Heise - San Jose CA, US

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

B01D 63/08
B01D 61/38
B01D 63/08

Abstract:

Two-dimensional materials having apertures in their basal planes are described, where at least a portion of the apertures are occluded with a selectively introduced occluding moiety. Occluding moieties that pass into apertures function to occlude apertures. Composite membranes are described having a porous substrate with a two-dimensional material disposed on the membrane and covering only a portion of the pores, wherein at least a portion of uncovered substrate pores are occluded. Pore occlusion can be achieved by introduction of an occluding particle optionally followed by chemical reaction, deformation or swelling of the particle to facilitate occlusion of pores. Two-dimensional materials covering substrate pores can be size-selected and optionally functionalized providing for selective permeability through composite membranes. Methods for occluding defects and apertures in two-dimensional materials and for selectively occluding pores in composite membranes are provided. Selectively occluded materials and membranes are useful in filtration and other applications.

US Patent:

20170296976, Oct 19, 2017

Filed:

Apr 14, 2016

Appl. No.:

15/099410

Inventors:

- Bethesda MD, US
Sarah M. Simon - Baltimore MD, US
Steven Lloyd Sinsabaugh - Abingdon MD, US

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

B01D 65/10
B01D 69/12
B01D 67/00
B01D 71/02

Abstract:

A method for the repair of defects in a graphene or other two-dimensional material through interfacial polymerization.

US Patent:

20170296979, Oct 19, 2017

Filed:

Apr 14, 2016

Appl. No.:

15/099289

Inventors:

- Bethesda MD, US
Sarah M. Simon - Baltimore MD, US
Peter V. Bedworth - Los Gatos CA, US

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

B01D 69/12
A61M 1/16
B32B 37/14
B32B 37/06
B32B 38/00
A61M 37/00
A61K 47/02
A61M 1/34
B01D 71/02
B01D 67/00
B01D 65/00
B01D 61/02
C02F 1/44
A61K 9/70

Abstract:

Some embodiments comprise membranes comprising a first layer comprising a porous graphene-based material; a second layer comprising a porous graphene-based material; a channel positioned between the first layer and the second layer, wherein the channel has a tunable channel diameter; and at least one spacer substance positioned in the channel, wherein the spacer substance is responsive to the environmental stimulus. In some cases, the membranes have more than two layers of porous graphene-based material. Permeability of a membrane can be altered by exposing the membrane to an environmental stimulus. Membranes can be used in methods of water filtration, immune-isolation, timed drug release (e.g., sustained or delayed release), hemodialysis, or hemofiltration.

US Patent:

20170298191, Oct 19, 2017

Filed:

Apr 14, 2016

Appl. No.:

15/099295

Inventors:

- Bethesda MD, US
Sarah M. Simon - Baltimore MD, US

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

C08G 83/00
B01D 71/40
B01D 67/00
C02F 1/44
B01D 71/82
C02F 101/30
C02F 101/10
C02F 101/12

Abstract:

Provided herein are cross-linked graphene platelet polymers, compositions thereof, filtration devices comprising the cross-linked graphene platelet polymers and/or compositions thereof and method is using and making the same.

US Patent:

20170036911, Feb 9, 2017

Filed:

Apr 14, 2016

Appl. No.:

15/099239

Inventors:

- Bethesda MD, US
Peter V. BEDWORTH - Los Gatos CA, US
Scott E. HEISE - San Jose CA, US
Steven W. SINTON - Palo Alto CA, US
Sarah M. SIMON - Baltimore MD, US

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

C01B 31/00
C23C 16/44
C01B 31/02
C23C 16/26

Abstract:

Perforated sheets of graphene-based material having a plurality of perforations are provided. The perforated sheets may include perforated single layer graphene. The perforations may be located over greater than 10% of said area of said sheet of graphene-based material and the mean pore size of the perforations selected from the range of 0.3 nm to 1 μm. Methods for making the perforated sheets are also provided.

US Patent:

20170040082, Feb 9, 2017

Filed:

Apr 14, 2016

Appl. No.:

15/099269

Inventors:

- Bethesda MD, US
Peter V. BEDWORTH - Los Gatos CA, US
Scott E. HEISE - San Jose CA, US
Steven W. SINTON - Palo Alto CA, US
Sarah M. SIMON - Baltimore MD, US

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

H01B 1/04
C01B 31/00
C01B 31/02

Abstract:

Sheets of graphene-based material comprising single layer graphene and suitable for formation of a plurality of perforations in the single layer graphene are provided. In an aspect, the sheets of graphene-based material are formed by chemical vapor deposition followed by one or more conditioning steps. In a further aspect, the sheets of graphene-based material include non-graphenic carbon-based material and may be characterized the amount, mobility and/or volatility of the non-graphenic carbon-based material.