B01J 31/18

Containing nitrogen, phosphorus, arsenic or antimony as complexing atoms

Official title: containing nitrogen, phosphorus, arsenic or antimony {as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms (double metal cyanides B01J27/26; N-heterocyclic carbenes B01J31/2265)}

B01J31/18 (Containing nitrogen, phosphorus, arsenic or antimony as complexing atoms) appears on 2,935 US grants and 2,302 published applications in this corpus.

Search patents in B01J
Granted patents
2,935
Published applications
2,302
Assignees
1,029
Inventors
6,028
Latest grant
6 Oct 2026

Filings by year

B01J 31/18: granted patents and published applications per publication year
YearGranted patentsPublished applications
1976540
1977300
1978530
1979340
1980430
1981670
1982490
1983380
1984310
1985400
1986250
1987280
1988230
1989450
1990370
1991300
1992450
1993350
1994380
1995410
1996520
1997400
1998790
1999600
2000740
20017224
20026363
20036784
20045993
20056291
20066883
20075567
20084174
20095175
20104991
201158103
20126773
20136779
20146398
201594123
2016114122
2017102103
201890100
2019108115
20208293
202196100
202268112
202371113
20247998
20255783
20264142

By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.

Subgroups

Granted patents

Recent patents

Most cited

By later US patents