Patents by Inventor Dan Jonathan Kroll
Dan Jonathan Kroll 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).
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Patent number: 12578303Abstract: An embodiment provides a method for stirring a sample in a cell, including: providing a cell comprising a sample chamber; placing an electrode on an inner surface of the sample chamber, placing a removable stir bar in the sample chamber, the removable stir bar directly contacting and touching the electrode; and wherein the stir bar can be operated to rotate within the sample chamber upon the electrode. Other aspects are described and claimed.Type: GrantFiled: December 17, 2024Date of Patent: March 17, 2026Assignee: HACH COMPANYInventors: Corey Alan Salzer, Dan Jonathan Kroll
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Patent number: 12399110Abstract: An embodiment provides a method for digesting at least one analyte of an aqueous sample, including: introducing an aqueous sample comprising at least one analyte into a digestion device comprising one or more carbon substituted material electrodes; digesting the at least one analyte by applying an electrical potential between an anode and a cathode of the digestion device, wherein the digesting comprises a step-wise disintegration; measuring the at least one analyte of the aqueous sample from the digested material, using a measurement device selected from the group consisting of: an electrochemical device and an optical measurement device; and modifying the electrical potential based upon the measurement of the at least one analyte. Other aspects are described and claimed.Type: GrantFiled: December 15, 2021Date of Patent: August 26, 2025Assignee: HACH COMPANYInventors: Vishnu Vardhanan Rajasekharan, Dan Jonathan Kroll
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Publication number: 20250116645Abstract: An embodiment provides a method for stirring a sample in a cell, including: providing a cell comprising a sample chamber; placing an electrode on an inner surface of the sample chamber, placing a removable stir bar in the sample chamber, the removable stir bar directly contacting and touching the electrode; and wherein the stir bar can be operated to rotate within the sample chamber upon the electrode. Other aspects are described and claimed.Type: ApplicationFiled: December 17, 2024Publication date: April 10, 2025Inventors: Corey Alan Salzer, Dan Jonathan Kroll
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Publication number: 20250067711Abstract: An embodiment provides a method for deriving an amount of PFAS substances from a total organic fluoride measurement in a sample, including: removing inorganic fluoride from the sample using one or more of an ion exchange cartridge and an exclusion apparatus; preconcentrating, using a solid phase extraction, at least one PFAS substance in the sample; digesting, using a working electrode and a counter electrode, the at least one PFAS substance to an amount of total organic fluoride; and determining, using an analyzer, the amount of total organic fluoride in the sample. Other aspects are described and claimed.Type: ApplicationFiled: November 8, 2024Publication date: February 27, 2025Applicant: HACH COMPANYInventors: Vishnu Vardhanan RAJASEKHARAN, Cary Burton JACKSON, Matthew Ryan SALZER, Dan Jonathan KROLL
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Patent number: 12210007Abstract: An embodiment provides a method for stirring a sample in a cell, including: providing a cell comprising a sample chamber; placing a boron-doped diamond electrode on an inner surface of the sample chamber, placing a removable stir bar in the sample chamber, the removable stir bar directly contacting and touching the boron-doped diamond electrode; and wherein the stir bar can be operated to rotate within the sample chamber upon the boron-doped diamond electrode. Other aspects are described and claimed.Type: GrantFiled: August 24, 2022Date of Patent: January 28, 2025Assignee: Hach CompanyInventors: Corey Alan Salzer, Dan Jonathan Kroll
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Patent number: 12163937Abstract: An embodiment provides a method for deriving an amount of PFAS substances from a total organic fluoride measurement in a sample, including: removing inorganic fluoride from the sample using one or more of an ion exchange cartridge and an exclusion apparatus; preconcentrating, using a solid phase extraction, at least one PFAS substance in the sample; digesting, using a working electrode and a counter electrode, the at least one PFAS substance to an amount of total organic fluoride; and determining, using an analyzer, the amount of total organic fluoride in the sample. Other aspects are described and claimed.Type: GrantFiled: January 20, 2022Date of Patent: December 10, 2024Assignee: HACH COMPANYInventors: Vishnu Vardhanan Rajasekharan, Cary Burton Jackson, Matthew Ryan Salzer, Dan Jonathan Kroll
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Patent number: 12108318Abstract: An embodiment provides a method for transferring information from at least one instrument to an application, including: establishing a central protocol structure, wherein the central protocol structure defines a format for information transmitted utilizing the central protocol structure; transmitting over a short-range wireless communication channel information from the at least one device to the application, wherein the information is formatted in a broadcast packet in view of the central protocol structure; receiving, at the application, information from the at least one device; and performing, within the application, an action with respect to the information within the application, wherein the performing comprises deciphering the information contained in view of the central protocol structure.Type: GrantFiled: December 15, 2022Date of Patent: October 1, 2024Assignee: HACH COMPANYInventors: Brian Alan Harmon, Gregory James Lipinski, Joseph Rockstan Williams, Theophilus Brian Mooney, Timothy A. Higgins, Dan Jonathan Kroll, Vishnu Rajasekharan, Corey Alan Salzer
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Publication number: 20240069002Abstract: An embodiment provides a method for stirring a sample in a cell, including: providing a cell comprising a sample chamber; placing a boron-doped diamond electrode on an inner surface of the sample chamber, placing a removable stir bar in the sample chamber, the removable stir bar directly contacting and touching the boron-doped diamond electrode; and wherein the stir bar can be operated to rotate within the sample chamber upon the boron-doped diamond electrode. Other aspects are described and claimed.Type: ApplicationFiled: August 24, 2022Publication date: February 29, 2024Inventors: Corey Alan Salzer, Dan Jonathan Kroll
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Publication number: 20230228726Abstract: An embodiment provides a method for deriving an amount of PFAS substances from a total organic fluoride measurement in a sample, including: removing inorganic fluoride from the sample using one or more of an ion exchange cartridge and an exclusion apparatus; preconcentrating, using a solid phase extraction, at least one PFAS substance in the sample; digesting, using a working electrode and a counter electrode, the at least one PFAS substance to an amount of total organic fluoride; and determining, using an analyzer, the amount of total organic fluoride in the sample. Other aspects are described and claimed.Type: ApplicationFiled: January 20, 2022Publication date: July 20, 2023Inventors: Vishnu Vardhanan Rajasekharan, Cary Burton Jackson, Matthew Ryan Salzer, Dan Jonathan Kroll
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Publication number: 20230122443Abstract: An embodiment provides a method for transferring information from at least one instrument to an application, including: establishing a central protocol structure, wherein the central protocol structure defines a format for information transmitted utilizing the central protocol structure; transmitting over a short-range wireless communication channel information from the at least one device to the application, wherein the information is formatted in a broadcast packet in view of the central protocol structure; receiving, at the application, information from the at least one device; and performing, within the application, an action with respect to the information within the application, wherein the performing comprises deciphering the information contained in view of the central protocol structure.Type: ApplicationFiled: December 15, 2022Publication date: April 20, 2023Applicant: HACH COMPANYInventors: Brian Alan HARMON, Gregory James LIPINSKI, Joseph Rockstan WILLIAMS, Theophilus Brian MOONEY, Timothy A. HIGGINS, Dan Jonathan KROLL, Vishnu RAJASEKHARAN, Corey Alan SALZER
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Patent number: 11595798Abstract: An embodiment provides a method for transferring information from at least one instrument to an application, including: establishing a central protocol structure, wherein the central protocol structure defines a format for information transmitted utilizing the central protocol structure; transmitting over a short-range wireless communication channel information from the at least one device to the application, wherein the information is formatted in a broadcast packet in view of the central protocol structure; receiving, at the application, information from the at least one device; and performing, within the application, an action with respect to the information within the application, wherein the performing comprises deciphering the information contained in view of the central protocol structure.Type: GrantFiled: October 30, 2020Date of Patent: February 28, 2023Assignee: HACH COMPANYInventors: Brian Alan Harmon, Gregory James Lipinski, Joseph Rockstan Williams, Theophilus Brian Mooney, Timothy A. Higgins, Dan Jonathan Kroll, Vishnu Rajasekharan, Corey Alan Salzer
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Publication number: 20220187197Abstract: An embodiment provides a method for digesting at least one analyte of an aqueous sample, including: introducing an aqueous sample comprising at least one analyte into a digestion device comprising one or more carbon substituted material electrodes; digesting the at least one analyte by applying an electrical potential between an anode and a cathode of the digestion device, wherein the digesting comprises a step-wise disintegration; measuring the at least one analyte of the aqueous sample from the digested material, using a measurement device selected from the group consisting of: an electrochemical device and an optical measurement device; and modifying the electrical potential based upon the measurement of the at least one analyte. Other aspects are described and claimed.Type: ApplicationFiled: December 15, 2021Publication date: June 16, 2022Inventors: Vishnu Vardhanan Rajasekharan, Dan Jonathan Kroll
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Publication number: 20210136540Abstract: An embodiment provides a method for transferring information from at least one instrument to an application, including: establishing a central protocol structure, wherein the central protocol structure defines a format for information transmitted utilizing the central protocol structure; transmitting over a short-range wireless communication channel information from the at least one device to the application, wherein the information is formatted in a broadcast packet in view of the central protocol structure; receiving, at the application, information from the at least one device; and performing, within the application, an action with respect to the information within the application, wherein the performing comprises deciphering the information contained in view of the central protocol structure.Type: ApplicationFiled: October 30, 2020Publication date: May 6, 2021Inventors: Brian Alan Harmon, Gregory James Lipinski, Joseph Rockstan Williams, Theophilus Brian Mooney, Timothy A. Higgins, Dan Jonathan Kroll, Vishnu Rajasekharan, Corey Alan Salzer