Tokitae LLC

Stephen Paul Harston

Bernhard Hans Weigl

Ozgur Emek Yildirim

James Andrew Roecker

John Thomas Connelly

Damian Madan

Shannon Weise Stone

Daniel Howard Lieberman

Elizabeth Jane McClure

In some embodiments, a medical-sample filtration device includes: a container including at least one wall forming an internal surface, a first aperture adjacent to a first end of the wall, and a second aperture adjacent to a second end of the wall; a movable insert positioned within the container and including an external surface of a size and shape to reversibly mate with the internal surface of the container; a positioning unit affixed to the internal surface close to the second aperture; a filter unit affixed to the second aperture; a sample conduit affixed to the filter unit; a valve unit attached to the sample conduit; and a connector operable to close the valve when the movable insert is in a predefined position relative to the container.

Device for concentration of biological sample prior to immunoassay

Designs of improved canisters for animal semen straw storage in Dewars with cryogenic liquid are described. In some embodiments, the canisters include a layer of cryogen-absorbent material and an inner layer of thermally conductive material including apertures oriented and positioned to direct cryogen vapor into the interior of the container.

Containers for liquid nitrogen storage of semen straws

Growing community of inventors

Bothell, WA, United States of America

Stephen Paul Harston