Preventing water production in subterranean formations
US-2021403798-A1 · Dec 30, 2021 · US
using spacer compositions
using spacer compositions · 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 | C09K8/601 |
| Official title | {using spacer compositions} |
| Display label | using spacer compositions |
| Total patents | 70 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 3 |
| 2017 | 9 |
| 2018 | 13 |
| 2019 | 10 |
| 2020 | 9 |
| 2021 | 10 |
| 2022 | 6 |
| 2023 | 3 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods for delivering in-situ generated acids for stimulation of downhole structures
US-11156070-B2 · Oct 26, 2021 · US
Thermally-stable, non-precipitating, high-density wellbore fluids
US-11111428-B2 · Sep 7, 2021 · US
Enhancing Propped Fracture Conductivity In Subterranean Wells
US-2021269705-A1 · Sep 2, 2021 · US
Altering wettability in subterranean formations
US-11078406-B2 · Aug 3, 2021 · US
Fluid for hydraulic fracturing of a subterranean formation
US-2021189223-A1 · Jun 24, 2021 · US
Enhanced propped fracture conductivity in subterranean wells
US-11041111-B2 · Jun 22, 2021 · US
Methods of making and using a high temperature wellbore servicing fluid
US-10988676-B1 · Apr 27, 2021 · US
In situ solid organic pillar placement in fracture networks
US-10907090-B2 · Feb 2, 2021 · US
Oxidizing gasses for carbon dioxide-based fracturing fluids
US-2021024808-A1 · Jan 28, 2021 · US
In situ formed inorganic solids in fracture networks
US-10876042-B2 · Dec 29, 2020 · US
Altering wettability in subterranean formations
US-2020339867-A1 · Oct 29, 2020 · US
Predicting properties of well bore treatment fluids
US-10781693-B2 · Sep 22, 2020 · US
Method of fracturing a formation using a combination of spacer fluid and proppant slurry
US-10774632-B2 · Sep 15, 2020 · US
Lost circulation materials comprising red mud
US-10633940-B2 · Apr 28, 2020 · US
Methods for delivering in-situ generated acids for stimulation of downhole structures
US-2020116001-A1 · Apr 16, 2020 · US
Vertical proppant suspension in hydraulic fractures
US-10577536-B2 · Mar 3, 2020 · US
Geopolymer compositions as inorganic binding material for forming proppant aggregates
US-2020056083-A1 · Feb 20, 2020 · US
Thermally-stable, non-precipitating, high-denisty wellbore fluids
US-2020010758-A1 · Jan 9, 2020 · US
Multifunctional solid particulate diverting agent
US-10487261-B2 · Nov 26, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09K8/601?
- CPC C09K8/601 is the Cooperative Patent Classification code for “using spacer compositions.”
- How many patents are filed under CPC C09K8/601 (using spacer compositions)?
- Our database includes 70 publications tagged with this CPC code.
- Is patent activity under CPC C09K8/601 growing?
- Publication counts under this code: 3 in 2023 vs 1 in 2024 (latest complete years).