B01J 31/0251
Guanidides
Official title: {Guanidides (R2N-C(=NR)-NR2)}
B01J31/0251 (Guanidides) appears on 61 US grants and 48 published applications in this corpus.
Search patents in B01J- Granted patents
- 61
- Published applications
- 48
- Assignees
- 48
- Inventors
- 133
- Latest grant
- 1 Oct 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 3 |
| 2002 | 6 | 3 |
| 2003 | 6 | 4 |
| 2004 | 2 | 1 |
| 2005 | 0 | 3 |
| 2006 | 1 | 0 |
| 2007 | 2 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 2 |
| 2010 | 3 | 0 |
| 2011 | 1 | 5 |
| 2012 | 0 | 2 |
| 2013 | 6 | 0 |
| 2014 | 1 | 4 |
| 2015 | 3 | 0 |
| 2016 | 0 | 2 |
| 2017 | 3 | 2 |
| 2018 | 2 | 1 |
| 2019 | 0 | 2 |
| 2020 | 3 | 1 |
| 2021 | 0 | 2 |
| 2022 | 1 | 0 |
| 2023 | 0 | 3 |
| 2024 | 1 | 3 |
| 2025 | 0 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for the synthesis of polyethers1 Oct 2024US 12,104,015 B2Basque Center for Macromolecular Design and Engineering, Polymat Fundazioa
- Amidation of polymers containing ester side chains using functionalized amines17 May 2022US 11,332,554 B2Universiteit Gent
- Ion pair catalysis of tungstate and molybdate14 Jul 2020US 10,710,061 B2Nanyang Technological University
- Synthesis of carbamate or urea compounds24 Mar 2020US 10,597,358 B2Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
- Method for preparing bis-(silylalkyl)carbonate esters11 Feb 2020US 10,556,917 B1Uchicago Argonne, LLC
- Method for polyurethane depolymerization19 Mar 2026US 2026/0078235 A1AsociacióN Empresarial Centro TecnolóGico Del Mueble Y La Madera De La RegióN De Murcia
- Vitrimerization of polyurethane12 Feb 2026US 2026/0042896 A1
- Immobilized zinc complex having guanidine ligand, method for producing same, and method for producing cyclic carbonate using same18 Dec 2025US 2025/0381557 A1Shin-Etsu Chemical Co., Ltd.
- Perfluorinated amide salts and their uses as ionic conducting materials1 Aug 2024US 2024/0253023 A1
- High-purity manufacturing method of nanocellulose with ultra-highly grafted biopolymer21 Mar 2024US 2024/0092943 A1Foundation of Soongsil University-Industry Cooperation
Most cited
By later US patents
- Phase transfer catalyzed preparation of aromatic polyether polymers113US 5,229,482 AGeneral Electric Company · 1993
- Perfluorinated amide salts and their uses as ionic conducting materials61US 6,319,428 B1Centre National De La Recherche Scientifique · 2001
- Proton conductors in liquid form34US 6,120,696 ACentre National De La Recherche Scientifique · 2000
- Pentacyclic anion salts or tetrazapentalene derivatives and their uses as ionic conducting materials24US 6,835,495 B2Centre National De La Recherche Scientifique · 2004
- Heterocyclic aromatic anion salts, and their uses as ionic conducting materials22US 6,171,522 B2Centre National De La Recherche Scientifique · 2001