Description
Class C01C : AMMONIA; CYANOGEN; COMPOUNDS THEREOF
Subclass 1/242: Ammonia; Compounds thereof Sulfates of ammonium (C01C 1/14 takes precedence) Preparation from ammonia and sulfuric acid or sulfur trioxide
C01C 1/242
Sub-Class
Stats
- 27 US PATENTS IN FORCE
- 5 US APPLICATIONS PENDING
- 12 Total Patent Owners
- 82 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12157672 | Method for recycling supercritical waste liquid generated during process of producing silica aerogel blanket | Nov 13, 18 | Dec 03, 24 | LG Chem Ltd. |
| RE50128 | System and method for production of granular ammonium sulfate | Nov 02, 20 | Sep 17, 24 | PCI Nitrogen, LLC |
| 11993557 | Method and reactor for producing urea ammonium sulphate | Mar 20, 19 | May 28, 24 | Yara International ASA |
| 11965258 | Sulfur dioxide depolarized electrolysis and electrolyzer therefore | Oct 03, 23 | Apr 23, 24 | Peregrine Hydrogen Inc. |
| 11708267 | Process for managing hydrogen sulfide in a refinery | Dec 10, 21 | Jul 25, 23 | UOP LLC |
| 10870584 | Integrated process and plant for production of urea and UAS (urea-ammonium sulphate) mixtures | Nov 16, 17 | Dec 22, 20 | SAIPEM S.p.A. |
| RE48293 | System and method for production of granular ammonium sulfate | Nov 21, 18 | Nov 03, 20 | PCI Nitrogen, LLC |
| 10662093 | Agriculture treatment solution with chelating base product | Jun 16, 16 | May 26, 20 | EARTH SCIENCE LABORATORIES |
| 10053369 | Production of ammonium sulfate using a vacuum absorption process | Apr 11, 17 | Aug 21, 18 | The Research Foundation for the State University of New York |
| 9993770 | Process and apparatus for capturing gaseous ammonia | Jun 08, 16 | Jun 12, 18 | Not available |
| 9822020 | Nutrient recovery process | Dec 18, 13 | Nov 21, 17 | ANAERGIA INC. |
| 9808758 | Wet scrubber apparatus for ammonia capture | May 13, 16 | Nov 07, 17 | OHIO STATE INNOVATION FOUNDATION |
| 9540288 | System and method for production of granular ammonium sulfate | Feb 02, 15 | Jan 10, 17 | PCI NITROGEN, LLC |
| 9452938 | Ammonia capture recovery system | Jun 09, 14 | Sep 27, 16 | Not available |
| 9364787 | Wet scrubber apparatus for ammonia capture | Nov 11, 14 | Jun 14, 16 | OHIO STATE INNOVATION FOUNDATION |
| 9187379 | Conversion of acid gas to sulphate or phosphate-based fertilizers | Apr 20, 12 | Nov 17, 15 | SULVARIS INC. |
| 9174850 | Gaseous ammonia removal method | Oct 30, 14 | Nov 03, 15 | THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF AGRICULTURE |
| 8974763 | System and method for production of granular ammonium sulfate | Dec 18, 13 | Mar 10, 15 | PCI NITROGEN, LLC |
| 8961915 | Wet scrubber for ammonia capture | Sep 25, 13 | Feb 24, 15 | OHIO STATE INNOVATION FOUNDATION |
| 8906332 | Gaseous ammonia removal system | Mar 15, 11 | Dec 09, 14 | THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF AGRICULTURE |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2024/0417,256 | PRODUCTION OF SULFURIC ACID EMPLOYING AN O2 RICH STREAM | Oct 28, 22 | Dec 19, 24 | HALDOR TOPSOE A/S |
| 2024/0271,302 | SULFUR DIOXIDE DEPOLARIZED ELECTROLYSIS AND ELECTROLYZER THEREFORE | Apr 11, 24 | Aug 15, 24 | Peregrine Hydrogen Inc. |
| 2024/0158,248 | METHOD FOR RECOVERING AMMONIA | Oct 16, 23 | May 16, 24 | Not available |
| 2023/0054,797 | Ammonium Sulphate Production on Industrial Scale | Feb 04, 21 | Feb 23, 23 | Not available |
| 2019/0276,325 | INTEGRATED PROCESS AND PLANT FOR PRODUCTION OF UREA AND UAS (UREA-AMMONIUM SULPHATE) MIXTURES | Nov 16, 17 | Sep 12, 19 | Not available |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 24 Months (last 2 years Issuances)
- 24 Months (last 5 years Issuances)