Patents
US 10989304 B1: Compression packing
- Granted
- 2021-04-27
- Filed
- 2020-07-27 application 16939786
- Type
- Utility · 18 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A compression packing for sealing near valve stems, pump shafts and similar machine elements. The compression packing includes tracer particles that retain information about the fabrication of the packing which can be used to trace the origin thereof.
Source: PVGPATDIS, file of 2026-04-10 (ipg210427.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| TEADIT N.A., INC. 7 patents | US company or organization | Pasadena, TX | TEADIT N.A., INC. State business registration EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Carlos Daniel Braga Girao Barroso | Rio de Janeiro, BR | 3 | PVGPATDIS, file of 2026-04-10 | |
| Christopher Louis Day | Kemah, TX | 2 | PVGPATDIS, file of 2026-04-10 | |
| Jose Carlos Carvalho Veiga | Rio de Janeiro, BR | 7 | PVGPATDIS, file of 2026-04-10 | |
| Josmar Baruffaldi Cristello | Rio de Janeiro, BR | 2 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| F16J | Pistons ; cylinders; sealings | F16J15/104 | PVGPATDIS, file of 2026-04-10 |
| C09K | Materials for miscellaneous applications, not provided for elsewhere | C09K3/1009 | PVGPATDIS, file of 2026-04-10 |
| D01F | Chemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons; apparatus specially adapted for the manufacture of carbon filaments | D01F1/04 | PVGPATDIS, file of 2026-04-10 |
| D02G | Crimping or curling fibres, filaments, threads, or yarns; yarns or threads | D02G3/32 | PVGPATDIS, file of 2026-04-10 |
| D04C | Braiding or manufacture of lace, including bobbin-net or carbonised lace; braiding machines; braid; lace | D04C1/04 | PVGPATDIS, file of 2026-04-10 |
| C08K | Use of inorganic or non-macromolecular organic substances as compounding ingredients | C08K3/16 | PVGPATDIS, file of 2026-04-10 |
| D10B | Indexing scheme associated with sublasses of section d, relating to textiles | D10B2101/12 | PVGPATDIS, file of 2026-04-10 |
| Y10T | Technical subjects covered by former us classification | Y10T428/1352 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2020-07-30 | Assignment Assignment of assignor's interest | BARROSO, CARLOS DANIEL BRAGA GIRAO signed 2020-07-29 CRISTELLO, JOSMAR BARUFFALDI signed 2020-07-29 DAY, CHRISTOPHER LOUIS signed 2020-07-29 VEIGA, JOSE CARLOS CARVALHO signed 2020-07-29 | TEADIT N.A., INC. PASADENA, TX | 53356/217 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.