Composition for solid coating formation and tubular threaded joint
US-10150887-B2 · Dec 11, 2018 · US
for special environments
for special environments · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F16L2201/40 |
| Official title | for special environments |
| Display label | for special environments |
| Total patents | 149 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 26 |
| 2016 | 13 |
| 2017 | 12 |
| 2018 | 19 |
| 2019 | 23 |
| 2020 | 15 |
| 2021 | 5 |
| 2022 | 10 |
| 2023 | 6 |
| 2024 | 10 |
| 2025 | 6 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Tubular connecting arrangement and method of sealingly connecting tubulars
US-2018340636-A1 · Nov 29, 2018 · US
Pressure compensated enclosures for submerged joints
US-10113681-B2 · Oct 30, 2018 · US
Fluid transfer coupling
US-10060565-B2 · Aug 28, 2018 · US
Rapid-connect coupler with vent stop
US-2018187812-A1 · Jul 5, 2018 · US
Bulkhead fitting assembly and method of sealing a bulkhead opening
US-9989176-B2 · Jun 5, 2018 · US
Electromagnetic telemetry gap sub assembly with insulating collar
US-2018148984-A1 · May 31, 2018 · US
Swivel hub
US-2018140821-A1 · May 24, 2018 · US
Electromagnetic telemetry gap sub assembly with insulating collar
US-9909369-B2 · Mar 6, 2018 · US
Tapered thread configuration with improved durability
US-2017314337-A1 · Nov 2, 2017 · US
Low temperature fluid dual structure pipe and low temperature fluid dual structure storage tank
US-2017307112-A1 · Oct 26, 2017 · US
High torque polymer fittings
US-2017274507-A1 · Sep 28, 2017 · US
Spring strut top mounting
US-9758195-B2 · Sep 12, 2017 · US
Tube with coupling
US-2017167648-A1 · Jun 15, 2017 · US
Casing joint assembly
US-9657530-B2 · May 23, 2017 · US
Threaded connection for oil country tubular goods and composition for photocurable coating
US-2017138526-A1 · May 18, 2017 · US
Threaded connections with an adjustable secondary shoulder
US-9638362-B2 · May 2, 2017 · US
Coupling assembly and protective ring therefor
US-2017114942-A1 · Apr 27, 2017 · US
Tapered thread configuration with improved durability
US-9605491-B2 · Mar 28, 2017 · US
Joint assembly for forming a duct
US-2017074450-A1 · Mar 16, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16L2201/40?
- CPC F16L2201/40 is the Cooperative Patent Classification code for “for special environments.”
- How many patents are filed under CPC F16L2201/40 (for special environments)?
- Our database includes 149 publications tagged with this CPC code.
- Is patent activity under CPC F16L2201/40 growing?
- Publication counts under this code: 10 in 2024 vs 6 in 2025 (latest complete years).