C09K 2205/42
Type r12
Official title: Type R12
C09K2205/42 (Type r12) appears on 40 US grants and 30 published applications in this corpus.
Search patents in C09K- Granted patents
- 40
- Published applications
- 30
- Assignees
- 17
- Inventors
- 51
- Latest grant
- 23 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 5 | 2 |
| 2003 | 5 | 2 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 2 | 0 |
| 2015 | 1 | 3 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 1 | 1 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 2 | 3 |
| 2024 | 2 | 3 |
| 2025 | 2 | 3 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- HFO-1234ze, HFO-1225zc and HFO-1234yf containing compositions and processes for producing and using the compositions23 Sep 2025US 12,421,436 B2The Chemours Company Fc, LLC
- HFO-1234ze, HFO-1225zc and HFO-1234yf containing compositions and processes for producing and using the compositions6 May 2025US 12,291,666 B2The Chemours Company Fc, LLC
- HFO-1234ZE, HFO-1225ZC and HFO-1234YF containing compositions and processes for producing and using the compositions25 Jun 2024US 12,018,204 B2The Chemours Company Fc, LLC
- HFO-1234ze, HFO-1225zc and HFO-1234yf containing compositions and processes for producing and using the compositions9 Jan 2024US 11,866,634 B2The Chemours Company Fc, LLC
- Grease and refrigeration cycle apparatus using grease as lubricant28 Nov 2023US 11,827,832 B2Daikin Industries, Ltd.
- Refrigerant-containing composition, use of same, refrigerator comprising same, and method for operating refrigerator22 Jan 2026US 2026/0022285 A1Daikin Industries, Ltd.
- Hfo-1234ze, hfo-1225zc and hfo-1234yf containing compositions and processes for producing and using the compositions1 Jan 2026US 2026/0002064 A1The Chemours Company Fc, LLC
- Composition containing refrigerant, use of said composition, refrigeration method using said composition, and refrigeration unit and refrigerator containing said composition4 Dec 2025US 2025/0368876 A1Daikin Industries, Ltd.
- Refrigerant-containing composition, use of same, refrigerator comprising same, and method for operating refrigerator23 Oct 2025US 2025/0326962 A1Daikin Industries, Ltd.
- Hfo-1234ze, hfo-1225zc and hfo-1234yf containing compositions and processes for producing and using the compositions19 Jun 2025US 2025/0197706 A1The Chemours Company Fc, LLC
Most cited
By later US patents
- Substitute refrigerant for dichlorodifluoromethane refrigeration systems40US 5,425,890 AAPD Cryogenics, Inc. · 1995
- R 22 replacement refrigerant38US 6,606,868 B1Refrigerant Products, Ltd. · 2003
- Method of retrofitting air conditioner and system therefor32US 6,089,032 AInterdynamics, Inc. · 2000
- Replacement refrigerant composition31US 5,688,432 AStar Refrigeration Limited · 1997
- Mixed gas R-12 refrigeration apparatus26US 5,622,644 AIntercool Energy Corporation · 1997