Catalytic reaction process
US-2024173711-A1 · May 30, 2024 · US
Heat treatment
Heat treatment · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B01J38/02 |
| Official title | Heat treatment |
| Display label | Heat treatment |
| Total patents | 492 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 33 |
| 2016 | 31 |
| 2017 | 38 |
| 2018 | 57 |
| 2019 | 45 |
| 2020 | 46 |
| 2021 | 46 |
| 2022 | 52 |
| 2023 | 50 |
| 2024 | 47 |
| 2025 | 35 |
| 2026 | 12 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Production of Aromatics from Di- and Polyoxygenates
US-2016362346-A1 · Dec 15, 2016 · US
Production of Aromatics from Di- and Polyoxygenates
US-2016332941-A1 · Nov 17, 2016 · US
Regeneration of a titanium containing zeolite
US-2016332152-A1 · Nov 17, 2016 · US
Process for converting paraffin to olefin and catalyst for use therein
US-2016326069-A1 · Nov 10, 2016 · US
Method for regenerating COS hydrolysis catalyst
US-9486797-B2 · Nov 8, 2016 · US
Catalyst and process for the conversion of oxygenates to olefins
US-2016310934-A1 · Oct 27, 2016 · US
On-site regeneration method of denitration catalyst in exhaust gas purification system
US-2016305303-A1 · Oct 20, 2016 · US
Process for the conversion of oxygenates to olefins
US-2016296923-A1 · Oct 13, 2016 · US
Method for Regenerating Semi-Regenerated Reforming Catalyst
US-2016279626-A1 · Sep 29, 2016 · US
Methods, systems and devices for simultaneous production of lactic acid and propylene glycol from glycerol
US-9447011-B2 · Sep 20, 2016 · US
Production of aromatics from di- and polyoxygenates
US-9440892-B2 · Sep 13, 2016 · US
Method for regenerating scr denitration catalyst assisted by microwaves and device therefor
US-2016256824-A1 · Sep 8, 2016 · US
Bi-metal molecular sieve catalysts
US-2016243533-A1 · Aug 25, 2016 · US
Production of aromatics from di- and polyoxygenates
US-9403736-B2 · Aug 2, 2016 · US
Dual riser fluid bed process and reactor
US-2016214911-A1 · Jul 28, 2016 · US
Systems and processes for conversion of ethylene feedstocks to hydrocarbon fuels
US-2016194257-A1 · Jul 7, 2016 · US
Method for removing soot from exhaust gases
US-2016177794-A1 · Jun 23, 2016 · US
Process for preparing acrylic acid
US-2016152541-A1 · Jun 2, 2016 · US
Method for the fluidized catalytic cracking of a heavy hydrocarbon feedstock
US-2016152900-A1 · Jun 2, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J38/02?
- CPC B01J38/02 is the Cooperative Patent Classification code for “Heat treatment.”
- How many patents are filed under CPC B01J38/02 (Heat treatment)?
- Our database includes 492 publications tagged with this CPC code.
- Is patent activity under CPC B01J38/02 growing?
- Publication counts under this code: 47 in 2024 vs 35 in 2025 (latest complete years).