Machine for forming filter bags for infusion products
US-2026077896-A1 · Mar 19, 2026 · US
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Attaching, or forming and attaching, string handles or tags to tea bags
Attaching, or forming and attaching, string handles or tags to tea bags · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B65B29/04 |
| Official title | Attaching, or forming and attaching, string handles or tags to tea bags |
| Display label | Attaching, or forming and attaching, string handles or tags to tea bags |
| Total patents | 14 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 1 |
| 2022 | 6 |
| 2024 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Packaging machine for making filter bags with infusion productions
US-12054301-B2 · Aug 6, 2024 · US
Unit for over-wrapping filter bags for infusion products
US-11939093-B2 · Mar 26, 2024 · US
Packaging machine for making filter bags with infusion productions
US-2022332454-A1 · Oct 20, 2022 · US
Unit for over-wrapping filter bags for infusion products
US-2022227510-A1 · Jul 21, 2022 · US
Machine for forming filter bags for infusion products
US-11377243-B2 · Jul 5, 2022 · US
Machine for forming filter bags for infusion products
US-11292628-B2 · Apr 5, 2022 · US
Machine for forming filter bags for infusion products
US-11267597-B2 · Mar 8, 2022 · US
Method for fastening a tag to a connecting thread to a filter bag for infusion products, a tag-thread assembly for a filter bag and a method for fixing the tag to a connecting thread with a filter bag
US-11214435-B2 · Jan 4, 2022 · US
Machine for forming filter bags for infusion products
US-2021253285-A1 · Aug 19, 2021 · US
Machine for forming filter bags for infusion products
US-10793347-B2 · Oct 6, 2020 · US
Machine for forming filter bags for infusion products
US-2020216205-A1 · Jul 9, 2020 · US
Machine for forming filter bags for infusion products
US-2019375524-A1 · Dec 12, 2019 · US
Machine for forming filter bags for infusion products
US-2019047781-A1 · Feb 14, 2019 · US