Arrowhead Center, Inc.
4 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.
7
Ending by 2030
Feb 2027
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 Jun 24, 2027The maintenance fee for Transgenic legumes (US 10,513,707) comes due Jun 24, 2027. Unpaid by Dec 27, 2027, it lapses early.
- 2 fees due Jul 2 to 5, 2027 · next Jul 2
- 2 fees due Sep 12 to 24, 2027 · next Sep 12
- 1 fee due Nov 3, 2027The maintenance fee for Subcritical Water Extraction of Lipids from Wet Algal Biomass (US 9,328,310) comes due Nov 3, 2027. Unpaid by May 3, 2028, it lapses early.
Recent changes
- 2 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 8,487,100 | Compounds for Binding to Er Alpha/Beta and GPR30, Methods of Treating Disease States and Conditions Mediated Through These Receptors and Identification Thereof In force · High confidence | In force | High confidence | |
| US 8,343,749 | Method and apparatus for membrane-based, two-stage gas production from solid biomaterials In force · From the USPTO record | In force | From the USPTO record | |
| US 7,771,504 | Producing liquid organic fertilizer from organic substrates In force · From the USPTO record | In force | From the USPTO record | |
| US 7,875,721 | Compounds for Binding to Eralpha/Beta and GPR30, Methods of Treating Disease States and Conditions Mediated Through These Receptors and Identification Thereof In force · High confidence | In force | High confidence | |
| US 8,093,041 | Method and apparatus for membrane-based, two-stage gas production from solid biomaterials In force · From the USPTO record | In force | From the USPTO record | |
| US 8,765,817 | Selective inhibitors of EG5 motors and methods of use In force · From the USPTO record | In force | From the USPTO record | |
| US 8,349,899 | Selective inhibitors of EG5 motors and methods of use In force · From the USPTO record | In force | From the USPTO record | |
| US 9,228,917 | Six Degrees of Freedom Free-Motion Test Apparatus In force · Medium confidence | In force | Medium confidence | |
| US 8,715,529 | Synthesis and applications of triazaborolopyridinium compounds and substituted triazaborolopyridinium compounds and methods of use In force · From the USPTO record | In force | From the USPTO record | |
| US 10,513,707 | Transgenic legumes In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 40: 4 patents in force now held by others · 39 lapsed for an unpaid fee · 13 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.
3 pending · 1 abandoned · 1 no status recorded