Description
Class C01C : AMMONIA; CYANOGEN; COMPOUNDS THEREOF
Subclass 1/244: Ammonia; Compounds thereof Sulfates of ammonium (C01C 1/14 takes precedence) Preparation by double decomposition of ammonium salts with sulfates
C01C 1/244
Sub-Class
Stats
- 5 US PATENTS IN FORCE
- 4 US APPLICATIONS PENDING
- 1 Total Patent Owners
- 38 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11912582 | Systems and methods to recover value-added materials from gypsum | Oct 12, 22 | Feb 27, 24 | Davy Powersports Inc. |
| 11479472 | Systems and methods to recover value-added materials from gypsum | May 15, 21 | Oct 25, 22 | Elixsys Inc. |
| 11148956 | Systems and methods to treat flue gas desulfurization waste to produce ammonium sulfate and calcium carbonate products | Jan 22, 20 | Oct 19, 21 | Elixsys Inc. |
| 10118224 | Method for producing nickel powder | Jan 27, 15 | Nov 06, 18 | KOCHI UNIVERSITY, NATIONAL UNIVERSITY CORPORATION; Sumitomo Metal Mining Co. Ltd.; |
| 9682868 | Partially continuous countercurrent process for converting gypsum to ammonium sulfate and calcium carbonate | Jan 25, 16 | Jun 20, 17 | SPARSTANE TECHNOLOGIES LLC |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2024/0190,713 | SYSTEMS AND PROCESSES FOR PRODUCING AMMONIUM SULFATE FROM WASTE STREAMS | May 03, 23 | Jun 13, 24 | Not available |
| 2024/0190,716 | Systems and Methods to Recover Value-Added Materials from Gypsum | Jan 18, 24 | Jun 13, 24 | Davy Powersports Inc. |
| 2023/0303,400 | Method For Manufacturing Ammonium Sulphate And Calcium Carbonate From Phosphogypsum | Jul 28, 21 | Sep 28, 23 | OCP SA; Universite Mohamed VI Polytechnique; |
| 2021/0347,648 | SYSTEMS AND METHODS TO TREAT FLUE GAS DESULFURIZATION AND METAL-BEARING WASTE STREAMS TO RECOVER VALUE-ADDED MATERIALS | Jul 21, 21 | Nov 11, 21 | Not available |
Top Owners in This Subclass
| Upgrade to the Professional Level to view Top Owners for this Subclass.Learn More |
|---|
Patents Issued To Date - By Filing Year
Average Time to Issuance
- 16 Months (last 2 years Issuances)
- 16 Months (last 5 years Issuances)