B22D
Casting of metals
Official title: CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES (shaping of plastics or substances in a plastic state B29C; metallurgical processing, selection of substances to be added to metal C21, C22)
B22D (Casting of metals) appears on 14,983 US grants and 10,494 published applications in this corpus.
Search patents in B22D- Granted patents
- 14,983
- Published applications
- 10,494
- Assignees
- 4,707
- Inventors
- 25,661
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 306 | 0 |
| 1977 | 296 | 0 |
| 1978 | 297 | 0 |
| 1979 | 208 | 0 |
| 1980 | 260 | 0 |
| 1981 | 266 | 0 |
| 1982 | 180 | 0 |
| 1983 | 162 | 0 |
| 1984 | 265 | 0 |
| 1985 | 329 | 0 |
| 1986 | 354 | 0 |
| 1987 | 355 | 0 |
| 1988 | 333 | 0 |
| 1989 | 306 | 0 |
| 1990 | 329 | 0 |
| 1991 | 327 | 0 |
| 1992 | 286 | 0 |
| 1993 | 330 | 0 |
| 1994 | 312 | 0 |
| 1995 | 240 | 0 |
| 1996 | 255 | 0 |
| 1997 | 267 | 0 |
| 1998 | 292 | 0 |
| 1999 | 322 | 0 |
| 2000 | 263 | 0 |
| 2001 | 289 | 111 |
| 2002 | 322 | 296 |
| 2003 | 326 | 322 |
| 2004 | 246 | 368 |
| 2005 | 234 | 326 |
| 2006 | 219 | 315 |
| 2007 | 191 | 354 |
| 2008 | 137 | 329 |
| 2009 | 160 | 389 |
| 2010 | 186 | 370 |
| 2011 | 243 | 406 |
| 2012 | 299 | 409 |
| 2013 | 257 | 411 |
| 2014 | 297 | 478 |
| 2015 | 360 | 590 |
| 2016 | 338 | 716 |
| 2017 | 436 | 637 |
| 2018 | 451 | 546 |
| 2019 | 513 | 507 |
| 2020 | 459 | 471 |
| 2021 | 443 | 453 |
| 2022 | 355 | 462 |
| 2023 | 332 | 341 |
| 2024 | 364 | 338 |
| 2025 | 272 | 319 |
| 2026 | 114 | 230 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- B22D 11/00Continuous casting of metals, i.e. casting in indefinite lengths5,004
- B22D 17/00Pressure die casting or injection die casting, i.e. casting in which the2,290
- B22D 41/00Casting melt-holding vessels1,933
- B22D 19/00Casting in, on, or around objects which form part of the product1,904
- B22D 27/00Treating the metal in the mould while it is molten or ductile1,211
- B22D 25/00Special casting characterised by the nature of the product1,159
- B22D 21/00Casting non-ferrous metals or metallic compounds so far as their metallurgical properties837
- B22D 23/00Casting processes not provided for in groups b22d1/00 - b22d21/00677
All 28 main groupsShow fewer
- B22D 18/00Pressure casting651
- B22D 29/00Removing castings from moulds, not restricted to casting processes covered by a495
- B22D 1/00Treatment of fused masses in the ladle or the supply runners before488
- B22D 7/00Casting ingots487
- B22D 13/00Centrifugal casting371
- B22D 39/00Equipment for supplying molten metal in rations338
- B22D 15/00Casting using a mould or core of which a part significant to295
- B22D 31/00Cutting-off surplus material260
- B22D 35/00Equipment for conveying molten metal into beds or moulds243
- B22D 2/00Arrangement of indicating or measuring devices188
- B22D 37/00Controlling or regulating the pouring of molten metal from a casting melt-holding171
- B22D 46/00Controlling, supervising, not restricted to casting covered by a single main group167
- B22D 43/00Mechanical cleaning152
- B22D 47/00Casting plants142
- B22D 33/00Equipment for handling moulds132
- B22D 45/00Equipment for casting, not otherwise provided for122
- B22D 30/00Cooling castings, not restricted to casting processes covered by a single main119
- B22D 5/00Machines or plants for pig or like casting53
- B22D 9/00Machines or plants for casting ingots48
- B22D 3/00Pig or like casting13
Recent patents
- Formation of metal articles using localized sonication6 Oct 2026US 12,752,338 B2Battelle Memorial Institute
- Casting system and casting6 Oct 2026US 12,752,565 B2Sintokogio, Ltd.
- Continuous casting parameter value and set-up condition determination using artificial intelligence29 Sep 2026US 12,746,594 B2Wagstaff, Inc.
- Assembly for degassing aluminum29 Sep 2026US 12,746,595 B1Stas Inc.
- Real-time liquid metal droplet analyzer with spatial modulation in additive manufacturing29 Sep 2026US 12,746,602 B2Genesee Valley Innovations, LLC
- Mold8 Oct 2026US 2026/0307138 A1Cunova GmbH
- Continuous casting plant for a metal product and related process8 Oct 2026US 2026/0307139 A1Danieli & C. Officine Meccaniche SpA
- Induction casting machine for non-ferrous metals with the ability of casting several different molds continually using a mold filling sensor8 Oct 2026US 2026/0307140 A1Maxtech Induction Ltd.
- Mechanical ejector8 Oct 2026US 2026/0307312 A1Merkle Portugal, Unipessoal, LDA
- Rapidly solidified aluminum-rare earth element alloy and method of making the same8 Oct 2026US 2026/0308738 A1Eck Industries, Inc.
Most cited
By later US patents
- Thermocouple for a continuous casting machine484US 5,158,128 ASumitec, Inc. · 1992
- Investment casting of golf club heads with high density inserts312US 5,766,091 ASelmet, Inc. · 1998
- Method of drill bit manufacture219US 4,499,795 AStrata Bit Corporation · 1985
- Waveguide transitions and method of forming components217US 7,893,789 B2Andrew Corporation · 2011
- Amorphous metal/reinforcement composite material181US 5,567,251 AAmorphous Alloys Corp. · 1996