Patents
US 9651497 B2: Method and device to determine adsorption capacity for air entraining agents
- Granted
- 2017-05-16
- Filed
- 2014-10-10 application 15027537
- Type
- Utility · 21 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A method and system for measuring the adsorption potential of fly ash. A sample of the fly ash is mixed with an optically active reagent. The mixture is irradiated with light at a given wavelength and an optical parameter of the irradiated sample, such as intensity of optical absorbance or fluorescence emission is measured by an optical measuring apparatus. The adsorption capacity of the sample is determined as a function of the optical measurement. A controller is provided that communicates with the optical absorption measuring apparatus and controls flow of fly ash and sacrificial agent to a reaction zone or housing wherein the fly ash is contacted by the sacrificial agent.
Source: PVGPATDIS, file of 2026-04-10 (ipg170516.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Headwaters, Inc. 19 patents | US company or organization | South Jordan, UT | HEADWATERS INC State business registration EXACT high confidence: identical full name and state HEADWATERS INC SEC filer EXACT medium confidence: identical full name, one of each nationally | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Rafic Y. Minkara | Kennesaw, GA | 6 | PVGPATDIS, file of 2026-04-10 | |
| Jennifer M. Kelley | Taylorsville, GA | 1 | PVGPATDIS, file of 2026-04-10 | |
| Crystal A. Dixon | Fenton, MO | 2 | PVGPATDIS, file of 2026-04-10 | |
| Richard Nordman | Fenton, MO | 4 | PVGPATDIS, file of 2026-04-10 | |
| Michael J. Ponstingl | Fenton, MO | 1 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G01N | Investigating or analysing materials by determining their chemical or physical properties | G01N21/77 | PVGPATDIS, file of 2026-04-10 |
| C04B | Lime, magnesia; slag; cements; compositions thereof, e.g. mortars, concrete or like building materials; artificial stone ; ceramics ; refractories; treatment of natural stone | C04B18/08 | PVGPATDIS, file of 2026-04-10 |
| Y02W | Climate change mitigation technologies related to wastewater treatment or waste management | Y02W30/91 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2025-09-16 | Release of security interest Release of security interest in patents at reel/frame no. 67963/0364 | MIZUHO BANK, LTD., AS AGENT signed 2025-09-15 | EM RESOURCES LLC SOUTH JORDAN, UT | 72872/638 | ECORSEXC, file of 2026-09-25 |
| 2025-09-15 | Release of security interest Release of security interest in patents at reel/frame no. 70696/0397 | JEFFERIES FINANCE LLC, AS COLLATERAL AGENT signed 2025-09-15 | EM RESOURCES LLC SOUTH JORDAN, UT | 72910/155 | ECORSEXC, file of 2026-09-25 |
| 2025-04-01 | Security interest Security interest Security interest | EM RESOURCES LLC signed 2025-02-12 | JEFFERIES FINANCE LLC, AS COLLATERAL AGENT NEW YORK, NY | 70696/397 | ECORSEXC, file of 2026-09-25 |
| 2025-02-12 | Release of security interest Release of security interest in patents recorded at r/f 059002/0270 | UMB BANK, N.A. signed 2025-02-12 | EM RESOURCES LLC (F/K/A BORAL RESOURCES LLC) SOUTH JORDAN, UT | 70191/325 | ECORSEXC, file of 2026-09-25 |
| 2024-06-28 | Security interest Security interest Patent security agreement | EM RESOURCES LLC signed 2024-06-20 | MIZUHO BANK, LTD. NEW YORK, NY | 67963/364 | ECORSEXC, file of 2026-09-25 |
| 2024-06-20 | Release of security interest Release of security interest | MUFG BANK, LTD signed 2024-06-20 | EM RESOURCES LLC (FORMERLY KNOWN AS BORAL RESOURCES LLC) SOUTH JORDAN, UT | 67799/395 | ECORSEXC, file of 2026-09-25 |
| 2022-03-25 | Name change Change of name | BORAL RESOURCES LLC signed 2022-02-17 | EM RESOURCES LLC SOUTH JORDAN, UT | 59510/851 | ECORSEXC, file of 2026-09-25 |
| 2022-02-10 | Security interest Security interest Security interest | BORAL RESOURCES LLC signed 2022-02-10 | MUFG BANK, LTD. NEW YORK, NY | 59003/211 | ECORSEXC, file of 2026-09-25 |
| 2022-02-10 | Security interest Security interest Security interest | BORAL RESOURCES LLC signed 2022-02-10 | UMB BANK, N.A. DALLAS, TX | 59002/270 | ECORSEXC, file of 2026-09-25 |
| 2022-01-11 | Assignment Assignment of assignor's interest | BORAL INDUSTRIES INC. signed 2021-12-02 | BORAL RESOURCES LLC ROSWELL, GA | 58614/959 | ECORSEXC, file of 2026-09-25 |
| 2021-03-11 | Merger Merger | HEADWATERS INCORPORATED signed 2020-06-30 | BORAL INDUSTRIES INC. ROSWELL, GA | 55566/317 | ECORSEXC, file of 2026-09-25 |
| 2016-10-26 | Assignment Assignment of assignor's interest | KELLEY, JENNIFER M. signed 2014-09-16 MINKARA, RAFIC signed 2014-09-16 PONSTINGL, MICHAEL J. signed 2014-09-16 DIXON, CRYSTAL A. signed 2014-09-18 NORDMAN, RICHARD J. signed 2014-09-18 | HEADWATERS INCORPORATED SOUTH JORDAN, UT | 40136/969 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.