Formation of photochromic polyhexahydrotriazines (PHTS)
US-10113108-B1 · Oct 30, 2018 · US
with at least three nitrogen atoms in the ring
with at least three nitrogen atoms in the ring · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C08G73/0638 |
| Official title | {with at least three nitrogen atoms in the ring} |
| Display label | with at least three nitrogen atoms in the ring |
| Total patents | 101 |
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 | 19 |
| 2017 | 23 |
| 2018 | 12 |
| 2019 | 13 |
| 2020 | 13 |
| 2021 | 4 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Formation of photochromic polyhexahydrotriazines (phts)
US-2018291262-A1 · Oct 11, 2018 · US
Method of making highly porous polyhexahydrotriazines containing antimicrobial agents
US-2018265664-A1 · Sep 20, 2018 · US
Use of triazines for selective modification of natural polymers
US-2018163051-A1 · Jun 14, 2018 · US
A polyolefin reactive telechelic pre-polymer
US-2018162998-A1 · Jun 14, 2018 · US
Process to produce a polyolefin reactive telechelic pre-polymer
US-2018134840-A1 · May 17, 2018 · US
Coating compositions for use with an overcoated photoresist
US-2018095367-A1 · Apr 5, 2018 · US
Porous materials and method of making porous materials
US-2018079883-A1 · Mar 22, 2018 · US
Porous materials and method of making porous materials
US-9884948-B2 · Feb 6, 2018 · US
Porous/nanoporous pht
US-2018009948-A1 · Jan 11, 2018 · US
Porous/nanoporous pht
US-2017362383-A1 · Dec 21, 2017 · US
Synthesis of dynamic covalent 3D constructs
US-9809673-B2 · Nov 7, 2017 · US
Hydrogels from dynamic covalent networks
US-2017283551-A1 · Oct 5, 2017 · US
Coating compositions for use with an overcoated photoresist
US-2017283651-A1 · Oct 5, 2017 · US
Porous/nanoporous PHT
US-9777116-B2 · Oct 3, 2017 · US
Hydrogels from dynamic covalent networks
US-9700635-B2 · Jul 11, 2017 · US
High-performance, filler-reinforced, recyclable composite materials
US-9695282-B2 · Jul 4, 2017 · US
Synthesis of dynamic covalent 3D constructs
US-9676891-B2 · Jun 13, 2017 · US
Synthesis of dynamic covalent 3d constructs
US-2017145143-A1 · May 25, 2017 · US
Polyhexahydrotriazine dielectrics
US-9650471-B2 · May 16, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08G73/0638?
- CPC C08G73/0638 is the Cooperative Patent Classification code for “with at least three nitrogen atoms in the ring.”
- How many patents are filed under CPC C08G73/0638 (with at least three nitrogen atoms in the ring)?
- Our database includes 101 publications tagged with this CPC code.
- Is patent activity under CPC C08G73/0638 growing?
- Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).