Ruentex Engineering & Construction Co., Ltd.
1 more in force is now held by another company
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
Recorded under 3 name spellings.
1
Ending by 2030
Dec 2030
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.
- 3 fees due Dec 18 to 25, 2026 · next Dec 18
- 1 fee due Jan 9, 2027The maintenance fee for Structure of load-bearing columns and factory using the same (US 10,344,468) comes due Jan 9, 2027. Unpaid by Jul 9, 2027, it lapses early.
- 1 fee due Mar 12, 2027The maintenance fee for Rebar cage (US 11,753,824) comes due Mar 12, 2027. Unpaid by Sep 13, 2027, it lapses early.
- 1 fee due May 21, 2027The maintenance fee for Apparatus and method for manufacturing continuous stirrup (US 11,819,897) comes due May 21, 2027. Unpaid by Nov 22, 2027, it lapses early.
- 1 fee due Jul 16, 2027The maintenance fee for Beam-column joint structure (US 11,873,639) comes due Jul 16, 2027. Unpaid by Jan 18, 2028, it lapses early.
- 1 fee due Oct 21, 2027The maintenance fee for Jig for making reinforcement cage, method for making assembly of the same and erecting frame (US 10,626,612) comes due Oct 21, 2027. Unpaid by Apr 21, 2028, it lapses early.
- 1 fee due Nov 5, 2027The maintenance fee for Thermal equilibrium system for building and energy-saving air-conditioning system using the same (US 10,641,505) comes due Nov 5, 2027. Unpaid by May 5, 2028, it lapses early.
Recent changes
- 1 of the patents on this record was granted since Aug 17, 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 8,429,862 | Vibration damping construction system In force · From the USPTO record | In force | From the USPTO record | |
| US 10,823,489 | Waste heat recovery system In force · From the USPTO record | In force | From the USPTO record | |
| US 10,125,457 | Method of paving abnormal-shaped grid decks In force · From the USPTO record | In force | From the USPTO record | |
| US 10,145,130 | Sealing structure for the bottom of a beam space between precast panels In force · From the USPTO record | In force | From the USPTO record | |
| US 10,328,583 | Lifting equipment for waffle slab In force · From the USPTO record | In force | From the USPTO record | |
| US 10,626,612 | Jig for making reinforcement cage, method for making assembly of the same and erecting frame In force · From the USPTO record | In force | From the USPTO record | |
| US 10,329,767 | Grid deck with shear-resisting plates In force · From the USPTO record | In force | From the USPTO record | |
| US 10,280,628 | Waffle Slab with Plug In force · High confidence | In force | High confidence | |
| US 10,344,468 | Structure of load-bearing columns and factory using the same In force · From the USPTO record | In force | From the USPTO record | |
| US 10,808,393 | Method for forming a plurality of beams connected in series In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 33: 1 patent in force now held by others. 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.
1 pending · 3 no status recorded