Ferrite powder, ferrite resin composite material, and electromagnetic shielding material, electronic material, or electronic component
US-12595188-B2 · Apr 7, 2026 · US
Powdertech Co Ltd patents
Powdertech Co Ltd holds 99 patents in our database, with recent filings and technology areas summarized below.
| Metric | Value |
|---|---|
| Total patents | 99 |
| Recent patents | 17 |
| First publication | Jul 14, 2015 |
| Latest publication | Apr 7, 2026 |
Filing trend
Year-over-year patent counts for this assignee.
Recent patents
Latest publications where this party is an assignee.
Ferrite particle, carrier core material for electrophotographic developer, carrier for electrophotographic developer, and electrophotographic developer
US-12455516-B2 · Oct 28, 2025 · US
Ferrite particles, electrophotographic developer carrier core material, electrophotographic developer carrier, and electrophotographic developer
US-12436480-B2 · Oct 7, 2025 · US
Ferrite particles, electrophotographic developer carrier core material, electrophotographic developer carrier, and electrophotographic developer
US-12422763-B2 · Sep 23, 2025 · US
Ferrite particles, electrophotographic developer carrier core material, electrophotographic developer carrier, and electrophotographic developer
US-12386281-B2 · Aug 12, 2025 · US
Notable patents
Representative or frequently cited publications from precomputed assignee stats.
Ferrite powder, ferrite resin composite material, and electromagnetic shielding material, electronic material, or electronic component
US-12595188-B2 · Apr 7, 2026 · US
Ferrite particle, carrier core material for electrophotographic developer, carrier for electrophotographic developer, and electrophotographic developer
US-12455516-B2 · Oct 28, 2025 · US
Ferrite particles, electrophotographic developer carrier core material, electrophotographic developer carrier, and electrophotographic developer
US-12436480-B2 · Oct 7, 2025 · US
Ferrite particles, electrophotographic developer carrier core material, electrophotographic developer carrier, and electrophotographic developer
US-12422763-B2 · Sep 23, 2025 · US
Ferrite particles, electrophotographic developer carrier core material, electrophotographic developer carrier, and electrophotographic developer
US-12386281-B2 · Aug 12, 2025 · US
Top CPC classifications
Most common classification codes in this portfolio.
| CPC | Patents |
|---|---|
| G03G9/1075 | 56 |
| C01P2006/42 | 55 |
| C01P2004/61 | 51 |
| G03G9/1085 | 48 |
| C01G49/0072 | 42 |
Technology areas
Mapped technology topics for this assignee.
| Technology | Patents |
|---|---|
| Chemistry & Metallurgy | 63 |
| Physics | 61 |
| Electricity | 49 |
| Operations & Transport | 11 |
| Mechanical Engineering | 6 |
| Human Necessities | 3 |
| Cross-Sectional Technologies | 3 |
Frequently asked questions
Answers are generated from the same data shown on this page.
- How many patents does Powdertech Co Ltd have in patentsdb?
- Powdertech Co Ltd is linked to 99 publications as assignee in our database.
- What technology areas does Powdertech Co Ltd patent most?
- Top mapped technology areas by patent count: Chemistry & Metallurgy (63); Physics (61); Electricity (49).
- Is Powdertech Co Ltd's patent activity growing?
- In our data, assignee counts were 8 in 2024 and 7 in 2025 (lower year over year).
- What are recent patents assigned to Powdertech Co Ltd?
- See the “Recent patents” section above for the latest 5 publications we attribute to this assignee.