Posco
19 more in force are now held by other companies
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
52
Ending by 2030
Dec 2026
Next term end
When these terms end
Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
Fee deadlines
Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.
- 1 fee due Nov 23, 2026The maintenance fee for Manufacturing Method of Aluminum-Based Alloy Plated Steel (US 11,654,654) comes due Nov 23, 2026. Unpaid by May 24, 2027, it lapses early.
- 3 fees due Dec 11 to 30, 2026 · next Dec 11
- 7 fees due Jan 4 to 25, 2027 · next Jan 4
- 11 fees due Feb 6 to 28, 2027 · next Feb 6
- 9 fees due Mar 3 to 24, 2027 · next Mar 3
- 15 fees due Apr 3 to 30, 2027 · next Apr 3
- 11 fees due May 3 to 28, 2027 · next May 3
- 11 fees due Jun 1 to 30, 2027 · next Jun 1
- 11 fees due Jul 5 to 30, 2027 · next Jul 5
- 18 fees due Aug 9 to 27, 2027 · next Aug 9
- 15 fees due Sep 3 to 30, 2027 · next Sep 3
- 13 fees due Oct 2 to 30, 2027 · next Oct 2
- 4 fees due Nov 5 to 12, 2027 · next Nov 5
Recent changes
- 48 of the patents on this record were granted since Aug 16, 2026
- 7 terms have ended since Aug 16, 2026
Patents held now
Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,685,181 | Manufacturing Method of Carbon Steel Sheet Superior in Formability In force · Medium confidence | In force | Medium confidence | |
| US 7,763,122 | Non-Oriented Electrical Steel Sheets with Improved Magnetic Property and Method for Manufacturing the Same In force · High confidence | In force | High confidence | |
| US 7,624,588 | Hybrid absorption chiller In force · From the USPTO record | In force | From the USPTO record | |
| US 7,846,271 | Non-Oriented Electrical Steel Sheets with Excellent Magnetic Properties and Method for Manufacturing the Same In force · High confidence | In force | High confidence | |
| US 7,919,041 | Hearth Roll Apparatus for Annealing Furnace In force · High confidence | In force | High confidence | |
| US 8,113,139 | Gas Wiping Apparatus Having Adjustable Gas Guide In force · High confidence | In force | High confidence | |
| US 7,914,851 | Method of Manufacturing Hot-Dipped Galvanized Steel Sheet In force · High confidence | In force | High confidence | |
| US 7,922,968 | Corrosion Resistance Improved Steel Sheet for Automotive Muffler and Method of Producing the Steel Sheet In force · High confidence | In force | High confidence | |
| US 8,999,085 | High Manganese Steel Strips with Excellent Coatability and Superior Surface Property, Coated Steel Strips Using Steel Strips and Method for Manufacturing the Steel Strips In force · High confidence | In force | High confidence | |
| US 8,128,763 | Bake-Hardenable Cold Rolled Steel Sheet with Superior Strength, Galvannealed Steel Sheet Using the Cold Rolled Steel Sheet and Method for Manufacturing the Cold Rolled Steel Sheet In force · High confidence | In force | High confidence |
Also on record, not counted in the 858: 19 patents in force now held by others · 119 lapsed for an unpaid fee · 35 ended at full term. List them
Sources and methods
Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand.
How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
Published applications
US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.
300 pending · 102 abandoned · 231 no status recorded