Quality management indicator for flowers and ornamental plants, and quality management method for flowers and ornamental plants
US-2021360865-A1 · Nov 25, 2021 · US
for investigating time/temperature history
for investigating time/temperature history · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01N31/229 |
| Official title | {for investigating time/temperature history} |
| Display label | for investigating time/temperature history |
| Total patents | 103 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 12 |
| 2017 | 8 |
| 2018 | 10 |
| 2019 | 8 |
| 2020 | 11 |
| 2021 | 13 |
| 2022 | 9 |
| 2023 | 10 |
| 2024 | 7 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Detection tool and detection method
US-2021356401-A1 · Nov 18, 2021 · US
Visual indicators of biospecimen time-temperature exposure
US-2021333160-A1 · Oct 28, 2021 · US
Electronic Quality Indicator
US-2020370966-A1 · Nov 26, 2020 · US
Chemical indicator for monitoring hydrogen peroxide sterilization and disinfection processes
US-10823715-B2 · Nov 3, 2020 · US
Package for indicating heat-seal condition
US-10822150-B2 · Nov 3, 2020 · US
Temperature Detection Label and Article Management Device Using Same
US-2020278263-A1 · Sep 3, 2020 · US
Packaging material comprising indicator responding to an external stimulus
US-2020232958-A1 · Jul 23, 2020 · US
Electronic quality indicator
US-10697837-B2 · Jun 30, 2020 · US
Indicator tags that exhibit color transition
US-2020200611-A1 · Jun 25, 2020 · US
Dual-function heat indicator and method of manufacture
US-2020158705-A1 · May 21, 2020 · US
Product identification system and method
US-2020124484-A1 · Apr 23, 2020 · US
Temperature Detecting Material, Temperature Detecting Ink Using Same, Temperature Indicator, and Product Control System
US-2020041359-A1 · Feb 6, 2020 · US
Dual-function heat indicator and method of manufacture
US-10545125-B2 · Jan 28, 2020 · US
Dual-function heat indicator and method of manufacture
US-10514340-B2 · Dec 24, 2019 · US
Real time indicator for quaternary ammonium compound concentration
US-10514367-B2 · Dec 24, 2019 · US
Process monitoring device
US-2019381204-A1 · Dec 19, 2019 · US
Activatable temperature indicator with time delay
US-2019346415-A1 · Nov 14, 2019 · US
Biosensor for detecting the presence of bacteria
US-2019257831-A1 · Aug 22, 2019 · US
Method and system for determining product freshness
US-2019235538-A1 · Aug 1, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01N31/229?
- CPC G01N31/229 is the Cooperative Patent Classification code for “for investigating time/temperature history.”
- How many patents are filed under CPC G01N31/229 (for investigating time/temperature history)?
- Our database includes 103 publications tagged with this CPC code.
- Is patent activity under CPC G01N31/229 growing?
- Publication counts under this code: 7 in 2024 vs 6 in 2025 (latest complete years).