IPC Changelog
Changes from IPC 2025.01 to IPC 2026.01
The International Patent Classification is revised annually by WIPO. Each revision may introduce new codes to cover emerging technologies, remove codes that have become redundant, or restructure existing hierarchies to improve precision.
This page lists all classification changes between IPC version 2025.01 and 2026.01. Created entries are newly established codes. Deleted entries show codes that were removed along with their designated successor — the code to which existing patents are reclassified. The Project column references the WIPO revision project responsible for the change.
55 Created
231 Deleted
286 Total
Created (55)
New IPC codes introduced in version 2026.01.
| Code | Title | Project |
|---|---|---|
| A23L 15/00 | Egg products; Preparation or treatment thereof | C534 |
| A61L 2/02 | using physical processes | C529 |
| A61L 2/03 | Electric current | C529 |
| A61L 2/08 | Radiation | C529 |
| A61L 2/1 | Ultraviolet [UV] radiation | C529 |
| A61L 2/18 | Liquid substances | C529 |
| A61L 2/2 | Gaseous substances, e.g. vapours | C529 |
| C01B 3/00 | Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen; Reversible storage of hydrogen | F180 |
| C01B 3/02 | Production of hydrogen; Production of gaseous mixtures containing hydrogen | F180 |
| C01B 3/04 | by decomposition of inorganic compounds | F180 |
| C01B 3/06 | by reaction of inorganic compounds containing electro-positively bound hydrogen with inorganic reducing agents | F180 |
| C01B 3/08 | by reaction of inorganic compounds with metals | F180 |
| C01B 3/1 | by reaction of water vapour with metals | F180 |
| C01B 3/32 | by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide or air | F180 |
| C01B 3/36 | using oxygen; using mixtures containing oxygen as gasifying agents | F180 |
| C01B 3/38 | using catalysts | F180 |
| C01B 3/5 | Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification | F180 |
| C07K 16/08 | against material from viruses | F197 |
| C07K 16/1 | RNA viruses | F197 |
| C07K 16/12 | against material from bacteria | F197 |
| C12N 1/06 | Lysis of microorganisms | F202 |
| C12N 1/1 | Protozoa; Culture media therefor | F202 |
| C12N 1/12 | Unicellular algae; Culture media therefor | F202 |
| C12N 1/14 | Fungi; Culture media therefor | F202 |
| C12N 1/16 | Yeasts; Culture media therefor | F202 |
| C12N 1/18 | Baker's yeast; Brewer's yeast | F202 |
| C12N 1/2 | Bacteria; Culture media therefor | F202 |
| C21D 8/02 | during manufacturing of plates or strips | C531 |
| C21D 8/12 | during manufacturing of articles with special electromagnetic properties | C531 |
| F26B 21/00 | Arrangements for supplying or controlling air or other gases for drying solid materials or objects | F191 |
| G06F 1/18 | Packaging or power distribution | F194 |
| G06F 11/14 | Error detection or correction of the data by redundancy in operations | F189 |
| G06Q 10/00 | Administration; Management | F190 |
| G06T 11/00 | Two-dimensional [2D] image generation | C530 |
| G06T 11/2 | Drawing from basic elements | C530 |
| G06T 11/6 | Creating or editing images; Combining images with text | C530 |
| G21K 1/00 | Arrangements for handling particles or ionising radiation, e.g. focusing or moderating | C533 |
| H02J 1/00 | Circuit arrangements for DC mains or DC distribution networks | F140 |
| H02J 1/08 | Three-wire DC power distribution systems; Systems having more than three wires | F140 |
| H02J 1/1 | Parallel operation of DC sources | F140 |
| H02J 1/14 | Balancing load and power generation in DC networks | F140 |
| H02J 13/00 | Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network | F140 |
| H02J 15/00 | Systems for storing electric energy specially adapted for power networks | F140 |
| H02J 3/00 | Circuit arrangements for AC mains or AC distribution networks | F140 |
| H02J 3/02 | using a single network for simultaneous distribution of AC power at different frequencies | F140 |
| H02J 3/18 | Arrangements for adjusting, eliminating or compensating reactive power in networks | F140 |
| H02J 3/38 | Arrangements for feeding a single network from two or more generators or sources in parallel; Arrangements for feeding already energised networks from additional generators or sources in parallel | F140 |
| H02J 3/46 | Controlling the sharing of generated power between the generators, sources or networks | F140 |
| H02J 4/00 | Circuit arrangements for mains or distribution networks not specified as AC or DC; Circuit arrangements for mains or distribution networks combining AC and DC sections or sub-networks | F140 |
| H02J 7/00 | Circuit arrangements for charging or discharging batteries or for supplying loads from batteries | F196 |
| H04R 1/1 | Earpieces; Attachments therefor | F200 |
| H05K 1/18 | structurally associated with non-printed electric components | F198 |
| H05K 3/3 | Assembling printed circuits with electric components, e.g. with resistors | C540 |
| H05K 3/32 | electrically connecting electric components or wires to printed circuits | C540 |
| H05K 3/34 | by soldering | C540 |
Deleted (231)
IPC codes removed in version 2026.01, with their successor codes.
| Removed Code | Successor | Project |
|---|---|---|
| C01B 3/3 | C01B 3/28 | F180 |
| C01B 3/44 | C01B 3/42 | F180 |
| F26B 21/02 | F26B 21/2 | F191 |
| F26B 21/04 | F26B 21/25 | F191 |
| F26B 21/06 | F26B 21/3 | F191 |
| F26B 21/08 | F26B 21/33 | F191 |
| F26B 21/1 | F26B 21/35 | F191 |
| F26B 21/12 | F26B 21/37 | F191 |
| F26B 21/14 | F26B 21/4 | F191 |
| G01N 33/574 | G01N 33/575 | F203 |
| G06T 11/8 | G06T 11/6 | C530 |
| H02J 3/24 | H02J 3/0014 | F140 |
| H02J 3/2 | H02J 3/18 | F140 |
| H02J 3/22 | H02J 3/18 | F140 |
| H02J 5/00 | H02J 4/25 | F140 |
| H01L 25/065 | H10D 80/00 | C519 |
| H01L 25/07 | H10D 80/00 | C519 |
| H01L 25/11 | H10D 80/00 | C519 |
| H01L 21/7 | H10D 84/01 | C517 |
| H01L 21/77 | H10D 84/01 | C517 |
| H01L 25/075 | H10H 29/2 | C519 |
| H01L 25/13 | H10H 29/2 | C519 |
| H01L 21/18 | H10P 10/00 | C517 |
| H01L 21/2 | H10P 10/00 | C517 |
| H01L 21/34 | H10P 10/00 | C517 |
| H01L 21/18 | H10P 14/00 | C517 |
| H01L 21/34 | H10P 14/00 | C517 |
| H01L 21/2 | H10P 14/2 | C517 |
| H01L 21/36 | H10P 14/2 | C517 |
| H01L 21/203 | H10P 14/22 | C517 |
| H01L 21/363 | H10P 14/22 | C517 |
| H01L 21/205 | H10P 14/24 | C517 |
| H01L 21/365 | H10P 14/24 | C517 |
| H01L 21/208 | H10P 14/26 | C517 |
| H01L 21/368 | H10P 14/26 | C517 |
| H01L 21/447 | H10P 14/4 | C517 |
| H01L 21/449 | H10P 14/4 | C517 |
| H01L 21/28 | H10P 14/4 | C517 |
| H01L 21/283 | H10P 14/4 | C517 |
| H01L 21/3205 | H10P 14/4 | C517 |
| H01L 21/44 | H10P 14/4 | C517 |
| H01L 21/441 | H10P 14/4 | C517 |
| H01L 21/443 | H10P 14/42 | C517 |
| H01L 21/285 | H10P 14/42 | C517 |
| H01L 21/445 | H10P 14/46 | C517 |
| H01L 21/288 | H10P 14/46 | C517 |
| H01L 21/31 | H10P 14/6 | C517 |
| H01L 21/4757 | H10P 14/6 | C517 |
| H01L 21/469 | H10P 14/6 | C517 |
| H01L 21/32 | H10P 14/61 | C517 |
| H01L 21/475 | H10P 14/61 | C517 |
| H01L 21/47 | H10P 14/68 | C517 |
| H01L 21/312 | H10P 14/68 | C517 |
| H01L 21/471 | H10P 14/69 | C517 |
| H01L 21/314 | H10P 14/69 | C517 |
| H01L 21/316 | H10P 14/692 | C517 |
| H01L 21/473 | H10P 14/692 | C517 |
| H01L 21/318 | H10P 14/694 | C517 |
| H01L 21/265 | H10P 30/00 | C517 |
| H01L 21/425 | H10P 30/00 | C517 |
| H01L 21/266 | H10P 30/22 | C517 |
| H01L 21/426 | H10P 30/22 | C517 |
| H01L 21/3115 | H10P 30/4 | C517 |
| H01L 21/38 | H10P 32/00 | C517 |
| H01L 21/22 | H10P 32/00 | C517 |
| H01L 21/223 | H10P 32/12 | C517 |
| H01L 21/383 | H10P 32/12 | C517 |
| H01L 21/225 | H10P 32/14 | C517 |
| H01L 21/385 | H10P 32/14 | C517 |
| H01L 21/228 | H10P 32/16 | C517 |
| H01L 21/388 | H10P 32/16 | C517 |
| H01L 21/3115 | H10P 32/2 | C517 |
| H01L 21/3215 | H10P 32/3 | C517 |
| H01L 21/26 | H10P 34/00 | C517 |
| H01L 21/42 | H10P 34/00 | C517 |
| H01L 21/261 | H10P 34/2 | C517 |
| H01L 21/423 | H10P 34/4 | C517 |
| H01L 21/263 | H10P 34/4 | C517 |
| H01L 21/268 | H10P 34/42 | C517 |
| H01L 21/428 | H10P 34/42 | C517 |
| H01L 21/322 | H10P 36/00 | C517 |
| H01L 21/461 | H10P 50/00 | C517 |
| H01L 21/467 | H10P 50/00 | C517 |
| H01L 21/308 | H10P 50/00 | C517 |
| H01L 21/306 | H10P 50/00 | C517 |
| H01L 21/302 | H10P 50/00 | C517 |
| H01L 21/3065 | H10P 50/2 | C517 |
| H01L 21/3213 | H10P 50/26 | C517 |
| H01L 21/311 | H10P 50/28 | C517 |
| H01L 21/3063 | H10P 50/61 | C517 |
| H01L 21/3213 | H10P 50/66 | C517 |
| H01L 21/311 | H10P 50/68 | C517 |
| H01L 21/304 | H10P 52/00 | C517 |
| H01L 21/302 | H10P 52/00 | C517 |
| H01L 21/463 | H10P 52/00 | C517 |
| H01L 21/465 | H10P 52/00 | C517 |
| H01L 21/78 | H10P 54/00 | C517 |
| H01L 21/301 | H10P 54/00 | C517 |
| H01L 21/304 | H10P 54/00 | C517 |
| H01L 21/78 | H10P 58/00 | C517 |
| H01L 21/301 | H10P 58/00 | C517 |
| H01L 21/304 | H10P 70/00 | C517 |
| H01L 21/02 | H10P 70/00 | C517 |
| H01L 21/67 | H10P 72/00 | C517 |
| H01L 21/673 | H10P 72/1 | C517 |
| H01L 21/677 | H10P 72/3 | C517 |
| H01L 21/68 | H10P 72/5 | C517 |
| H01L 21/683 | H10P 72/7 | C517 |
| H01L 21/687 | H10P 72/76 | C517 |
| H01L 21/66 | H10P 74/00 | C517 |
| H01L 21/027 | H10P 76/00 | C517 |
| H01L 21/033 | H10P 76/4 | C517 |
| H01L 21/02 | H10P 90/00 | C517 |
| H01L 21/00 | H10P 95/00 | C517 |
| H01L 21/04 | H10P 95/00 | C517 |
| H01L 21/18 | H10P 95/00 | C517 |
| H01L 21/62 | H10P 95/00 | C517 |
| H01L 21/4757 | H10P 95/00 | C517 |
| H01L 21/461 | H10P 95/00 | C517 |
| H01L 21/4 | H10P 95/00 | C517 |
| H01L 21/24 | H10P 95/00 | C517 |
| H01L 21/02 | H10P 95/00 | C517 |
| H01L 21/3 | H10P 95/00 | C517 |
| H01L 21/3105 | H10P 95/00 | C517 |
| H01L 21/321 | H10P 95/00 | C517 |
| H01L 21/34 | H10P 95/00 | C517 |
| H01L 21/46 | H10P 95/00 | C517 |
| H01L 21/4763 | H10P 95/00 | C517 |
| H01L 21/64 | H10P 95/00 | C517 |
| H01L 21/322 | H10P 95/4 | C517 |
| H01L 21/449 | H10P 95/6 | C517 |
| H01L 21/304 | H10P 95/6 | C517 |
| H01L 21/463 | H10P 95/6 | C517 |
| H01L 21/306 | H10P 95/7 | C517 |
| H01L 21/465 | H10P 95/7 | C517 |
| H01L 21/479 | H10P 95/8 | C517 |
| H01L 21/326 | H10P 95/8 | C517 |
| H01L 21/306 | H10P 95/8 | C517 |
| H01L 21/465 | H10P 95/8 | C517 |
| H01L 21/477 | H10P 95/9 | C517 |
| H01L 21/324 | H10P 95/9 | C517 |
| H01L 21/76 | H10W 10/00 | C517 |
| H01L 21/762 | H10W 10/1 | C517 |
| H01L 21/764 | H10W 10/2 | C517 |
| H01L 21/761 | H10W 10/3 | C517 |
| H01L 21/763 | H10W 10/4 | C517 |
| H01L 21/765 | H10W 10/5 | C517 |
| H01L 21/74 | H10W 15/00 | C517 |
| H01L 21/768 | H10W 20/00 | C517 |
| H01L 23/535 | H10W 20/2 | C518 |
| H01L 23/522 | H10W 20/4 | C518 |
| H01L 23/52 | H10W 20/4 | C518 |
| H01L 23/528 | H10W 20/43 | C518 |
| H01L 23/532 | H10W 20/44 | C518 |
| H01L 23/525 | H10W 20/49 | C518 |
| H01L 21/71 | H10W 29/00 | C517 |
| H01L 23/34 | H10W 40/00 | C518 |
| H01L 23/36 | H10W 40/1 | C518 |
| H01L 23/367 | H10W 40/22 | C518 |
| H01L 23/373 | H10W 40/25 | C518 |
| H01L 23/38 | H10W 40/28 | C518 |
| H01L 23/44 | H10W 40/3 | C518 |
| H01L 23/46 | H10W 40/4 | C518 |
| H01L 23/467 | H10W 40/43 | C518 |
| H01L 23/473 | H10W 40/47 | C518 |
| H01L 23/4 | H10W 40/6 | C518 |
| H01L 23/42 | H10W 40/7 | C518 |
| H01L 23/427 | H10W 40/73 | C518 |
| H01L 23/433 | H10W 40/77 | C518 |
| H01L 23/58 | H10W 42/00 | C518 |
| H01L 23/552 | H10W 42/2 | C518 |
| H01L 23/556 | H10W 42/25 | C518 |
| H01L 23/6 | H10W 42/6 | C518 |
| H01L 23/62 | H10W 42/8 | C518 |
| H01L 23/64 | H10W 44/00 | C518 |
| H01L 23/66 | H10W 44/2 | C518 |
| H01L 23/544 | H10W 46/00 | C518 |
| H01L 23/492 | H10W 70/2 | C518 |
| H01L 23/495 | H10W 70/4 | C518 |
| H01L 23/12 | H10W 70/6 | C518 |
| H01L 23/538 | H10W 70/6 | C518 |
| H01L 23/498 | H10W 70/62 | C518 |
| H01L 23/13 | H10W 70/68 | C518 |
| H01L 23/14 | H10W 70/69 | C518 |
| H01L 23/15 | H10W 70/692 | C518 |
| H01L 23/48 | H10W 72/00 | C518 |
| H01L 23/482 | H10W 72/00 | C518 |
| H01L 23/485 | H10W 72/00 | C518 |
| H01L 23/5 | H10W 72/00 | C518 |
| H01L 23/488 | H10W 72/2 | C518 |
| H01L 21/52 | H10W 72/3 | C517 |
| H01L 21/58 | H10W 72/3 | C517 |
| H01L 23/49 | H10W 72/5 | C518 |
| H01L 21/6 | H10W 72/5 | C517 |
| H01L 21/603 | H10W 72/5 | C517 |
| H01L 21/607 | H10W 72/5 | C517 |
| H01L 23/28 | H10W 74/00 | C518 |
| H01L 21/56 | H10W 74/01 | C517 |
| H01L 23/31 | H10W 74/1 | C518 |
| H01L 23/29 | H10W 74/4 | C518 |
| H01L 21/48 | H10W 76/01 | C517 |
| H01L 21/5 | H10W 76/01 | C517 |
| H01L 21/98 | H10W 76/01 | C517 |
| H01L 21/54 | H10W 76/05 | C517 |
| H01L 23/02 | H10W 76/1 | C518 |
| H01L 23/04 | H10W 76/12 | C518 |
| H01L 23/043 | H10W 76/13 | C518 |
| H01L 23/045 | H10W 76/132 | C518 |
| H01L 23/047 | H10W 76/134 | C518 |
| H01L 23/049 | H10W 76/136 | C518 |
| H01L 23/051 | H10W 76/138 | C518 |
| H01L 23/053 | H10W 76/15 | C518 |
| H01L 23/055 | H10W 76/153 | C518 |
| H01L 23/057 | H10W 76/157 | C518 |
| H01L 23/06 | H10W 76/17 | C518 |
| H01L 23/08 | H10W 76/18 | C518 |
| H01L 23/16 | H10W 76/4 | C518 |
| H01L 23/18 | H10W 76/42 | C518 |
| H01L 23/2 | H10W 76/43 | C518 |
| H01L 23/22 | H10W 76/45 | C518 |
| H01L 23/24 | H10W 76/47 | C518 |
| H01L 23/26 | H10W 76/48 | C518 |
| H01L 23/1 | H10W 76/6 | C518 |
| H01L 23/32 | H10W 78/00 | C518 |
| H01L 25/00 | H10W 90/00 | C519 |
| H01L 25/03 | H10W 90/00 | C519 |
| H01L 25/04 | H10W 90/00 | C519 |
| H01L 25/1 | H10W 90/00 | C519 |
| H01L 25/16 | H10W 90/00 | C519 |
| H01L 25/18 | H10W 90/00 | C519 |
| H01L 23/00 | H10W 99/00 | C518 |