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Sinopec Engineering Incorporation

First filing 2006
OverviewNotableFeesChangesFamiliesPatent listSources & methods

14 patents currently held

Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

The next term ends in Aug 2028. from the record

Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
2
Ending by 2030
Aug 2028
Next term end
13
Patent families

When these terms end

Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
notable patents all others Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
Notable: the highest-ranked patents in this portfolio by citations and family size.

Notable patents

Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
Notable
Nanocrystalline Material Based on Stainless Steel Surface, and Preparation Method Therefor US 11,459,659
The newest of the three, granted 2022. It anchors the portfolio to 2039, later than anything else here.
Ends Sep 2039 · High confidence Also notable
Composite Catalyst for Production of Polyethylene US 8,536,286
Renewed at every maintenance window since the 2013 grant; no more fees are due before its term ends in 2029.
Ends Aug 2029 · High confidence Also notable
Ethylene Cracking Furnace US 9,205,400
Granted 2015 and renewed at every maintenance window due so far. Protection runs to 2031.
Ends Jul 2031 · High confidence

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 May 3, 2027
    The maintenance fee for Fluidized Bed Polymerization Reactor and Process for Preparing Polymer (US 9,174,183) comes due May 3, 2027. Unpaid by Nov 3, 2027, it lapses early.
  • 1 fee due Jun 8, 2027
    The maintenance fee for Ethylene Cracking Furnace (US 9,205,400) comes due Jun 8, 2027. Unpaid by Dec 8, 2027, it lapses early.
  • 1 fee due Oct 2, 2027
    The maintenance fee for Method and Device for Treating Oil Gas (US 11,946,002) comes due Oct 2, 2027. Unpaid by Apr 3, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

  • 1 of the patents on this record was granted since Aug 16, 2026

What they patent

The 5 largest of its 13 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
Ethylene Cracking Furnace2 in forceto Jul 2031
Heat Recovery Apparatus for Cracked Gas and Heat Recovery Process for Cracked Gas1 in forceto Mar 2043
Method and Device for Treating Oil Gas1 in forceto Jun 2040
Nanocrystalline Material Based on Stainless Steel Surface, and Preparation Method Therefor1 in forceto Sep 2039
Deflection Scanning Device with Multi-phase Winding and Deflection Scanning System1 in forceto Dec 2038

Patents held now

Soonest term end first.
PatentTitleStatusExpiresConfidence
US 7,707,852Process for Recovering Lower Carbon Olefins from Product Gas for Production of Olefins
In force
 · High confidence
In forceHigh confidence
US 8,536,286Composite Catalyst for Production of Polyethylene
In force
 · High confidence
In forceHigh confidence
US 9,205,400Ethylene Cracking Furnace
In force
 · High confidence
In forceHigh confidence
US 9,604,193Ethylene Cracking Furnace
In force
 · High confidence
In forceHigh confidence
US 8,900,522Ethylene Cracking Furnace With Multi-Pass Radiant Coil
In force
 · High confidence
In forceHigh confidence
US 8,916,030Ethylene Cracking Furnace
In force
 · High confidence
In forceHigh confidence
US 9,174,183Fluidized Bed Polymerization Reactor and Process for Preparing Polymer
In force
 · High confidence
In forceHigh confidence
US 9,833,762Ethylene Cracking Furnace
In force
 · High confidence
In forceHigh confidence
US 10,804,070Deflection Scanning Device with Multi-phase Winding and Deflection Scanning System
In force
 · High confidence
In forceHigh confidence
US 11,459,659Nanocrystalline Material Based on Stainless Steel Surface, and Preparation Method Therefor
In force
 · High confidence
In forceHigh confidence
10 of 14 patents shown.
Pro members see all 14.
Pro members: see all 14 patents
Also on record, not counted in the 14: 5 applications pending. List them

Sources and methods

Compiled from USPTO application file histories, grants and recorded assignments, with the company's own names reviewed by hand. How this record was built
Portfolio grouped automatically from ownership conveyances to the names matched to this company, usually every name that begins with its own, so it counts patents an affiliate holds; each list row names the holder of record. Security interests are excluded and ambiguous records are not reviewed by hand.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
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