Patents by Inventor Stephen Frayne
Stephen Frayne has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20230173435Abstract: Embodiments described herein relate generally to durable graphene oxide membranes for fluid filtration. For example, the graphene oxide membranes can be durable under high temperatures non-neutral pH, and/or high pressures. One aspect of the present disclosure relates to a filtration apparatus comprising: a support substrate, and a graphene oxide membrane disposed on the support substrate. The graphene oxide membrane has a first lactose rejection rate of at least 50% with a first 1 wt % lactose solution at room temperature. The graphene oxide membrane has a second lactose rejection rate of at least 50% with a second 1 wt % lactose solution at room temperature after the graphene oxide membrane is contacted with a solution that is at least 80° C. for a period of time.Type: ApplicationFiled: October 5, 2022Publication date: June 8, 2023Applicant: Via Separations, Inc.Inventors: Stephen FRAYNE, Michelle MACLEOD, Brandon Ian MACDONALD, Lymaris ORTIZ RIVERA, Brent KELLER
-
Patent number: 11498034Abstract: Embodiments described herein relate generally to durable graphene oxide membranes for fluid filtration. For example, the graphene oxide membranes can be durable under high temperatures non-neutral pH, and/or high pressures. One aspect of the present disclosure relates to a filtration apparatus comprising: a support substrate, and a graphene oxide membrane disposed on the support substrate. The graphene oxide membrane has a first lactose rejection rate of at least 50% with a first 1 wt % lactose solution at room temperature. The graphene oxide membrane has a second lactose rejection rate of at least 50% with a second 1 wt % lactose solution at room temperature after the graphene oxide membrane is contacted with a solution that is at least 80° C. for a period of time.Type: GrantFiled: July 20, 2021Date of Patent: November 15, 2022Assignee: Via Separations, Inc.Inventors: Stephen Frayne, Michelle Macleod, Brandon Ian MacDonald, Lymaris Ortiz Rivera, Brent Keller
-
Publication number: 20210370242Abstract: Embodiments described herein relate generally to graphene oxide membranes for fluid filtration and more specifically to graphene oxide membranes having tunable permeability, rejection rate, and flux. Some embodiments of the graphene oxide membranes disclosed herein are characterized as having a flux of at least about 2.5×10?4 gallons per square foot per day per psi with a 1 wt % lactose solution at room temperature, and a lactose rejection rate of at least 50% with a 1 wt % lactose solution.Type: ApplicationFiled: August 13, 2021Publication date: December 2, 2021Applicant: Via Separations, Inc.Inventors: Michelle MACLEOD, Stephen FRAYNE, Brandon Ian MACDONALD, Lymaris ORTIZ RIVERA, Brent KELLER
-
Publication number: 20210354094Abstract: Embodiments described herein relate generally to durable graphene oxide membranes for fluid filtration. For example, the graphene oxide membranes can be durable under high temperatures non-neutral pH, and/or high pressures. One aspect of the present disclosure relates to a filtration apparatus comprising: a support substrate, and a graphene oxide membrane disposed on the support substrate. The graphene oxide membrane has a first lactose rejection rate of at least 50% with a first 1 wt % lactose solution at room temperature. The graphene oxide membrane has a second lactose rejection rate of at least 50% with a second 1 wt % lactose solution at room temperature after the graphene oxide membrane is contacted with a solution that is at least 80° C. for a period of time.Type: ApplicationFiled: July 20, 2021Publication date: November 18, 2021Applicant: Via Separations, Inc.Inventors: Stephen FRAYNE, Michelle MACLEOD, Brandon Ian MACDONALD, Lymaris ORTIZ RIVERA, Brent KELLER
-
Patent number: 11123694Abstract: Embodiments described herein relate generally to graphene oxide membranes for fluid filtration and more specifically to graphene oxide membranes having tunable permeability, rejection rate, and flux. Some embodiments of the graphene oxide membranes disclosed herein are characterized as having a flux of at least about 2.5×10?4 gallons per square foot per day per psi with a 1 wt % lactose solution at room temperature, and a lactose rejection rate of at least 50% with a 1 wt % lactose solution.Type: GrantFiled: May 28, 2020Date of Patent: September 21, 2021Assignee: Via Separations, Inc.Inventors: Michelle MacLeod, Stephen Frayne, Brandon Ian MacDonald, Lymaris Ortiz Rivera, Brent Keller
-
Patent number: 11097227Abstract: Embodiments described herein relate generally to durable graphene oxide membranes for fluid filtration. For example, the graphene oxide membranes can be durable under high temperatures non-neutral pH, and/or high pressures. One aspect of the present disclosure relates to a filtration apparatus comprising: a support substrate, and a graphene oxide membrane disposed on the support substrate. The graphene oxide membrane has a first lactose rejection rate of at least 50% with a first 1 wt % lactose solution at room temperature. The graphene oxide membrane has a second lactose rejection rate of at least 50% with a second 1 wt % lactose solution at room temperature after the graphene oxide membrane is contacted with a solution that is at least 80° C. for a period of time.Type: GrantFiled: May 29, 2020Date of Patent: August 24, 2021Assignee: Via Separations, Inc.Inventors: Stephen Frayne, Michelle Macleod, Brandon Ian MacDonald, Lymaris Ortiz Rivera, Brent Keller
-
Publication number: 20200360868Abstract: Embodiments described herein relate generally to graphene oxide membranes for fluid filtration and more specifically to graphene oxide membranes having tunable permeability, rejection rate, and flux. Some embodiments of the graphene oxide membranes disclosed herein are characterized as having a flux of at least about 2.5×10?4 gallons per square foot per day per psi with a 1 wt % lactose solution at room temperature, and a lactose rejection rate of at least 50% with a 1 wt % lactose solution.Type: ApplicationFiled: May 28, 2020Publication date: November 19, 2020Inventors: Michelle MACLEOD, Stephen FRAYNE, Brandon Ian MACDONALD, Lymaris ORTIZ RIVERA, Brent KELLER
-
Publication number: 20200360869Abstract: Embodiments described herein relate generally to durable graphene oxide membranes for fluid filtration. For example, the graphene oxide membranes can be durable under high temperatures non-neutral pH, and/or high pressures. One aspect of the present disclosure relates to a filtration apparatus comprising: a support substrate, and a graphene oxide membrane disposed on the support substrate. The graphene oxide membrane has a first lactose rejection rate of at least 50% with a first 1 wt % lactose solution at room temperature. The graphene oxide membrane has a second lactose rejection rate of at least 50% with a second 1 wt % lactose solution at room temperature after the graphene oxide membrane is contacted with a solution that is at least 80° C. for a period of time.Type: ApplicationFiled: May 29, 2020Publication date: November 19, 2020Inventors: Stephen FRAYNE, Michelle MACLEOD, Brandon Ian MACDONALD, Lymaris ORTIZ RIVERA, Brent KELLER
-
Publication number: 20080130980Abstract: A miniature hand held scanner easily transportable on a key ring or pocket, the scanner having a computer chip positioned therein, the computer chip having stored thereon indicia peculiar to each paper currency note denomination, the scanner capable of scanning a portion of a paper currency note presented to an individual, comparing the indicia scanned to the indicia stored on the chip and the scanner having an audio capability to announce the denomination of the paper currency note scanned such that a visually impaired person can be assured that they are being provided with the correct change or monies due.Type: ApplicationFiled: November 28, 2007Publication date: June 5, 2008Inventors: Mary E. Gildersleeve, Stephen Frayne