15 patents currently held
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
The next term ends in May 2028. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
4
Ending by 2030
May 2028
Next term end
8
Patent families
When these terms end
Held patents by the year their term ends
notable patents
fee due within 90 days
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. Fee due within 90 days: a maintenance fee is due within 90 days of when this page was computed and not yet paid.
Notable patents
Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
Notable
Ends Oct 2031 · High confidence
Also notable
Ends Jun 2035 · High confidence
Also notable
Ends Apr 2040 · High confidence
Cyclodextrin Compositions, Articles, and Methods
US 8,481,127
Cited by 30 later US patents, top 25% of utility patents granted in 2013 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2031.
Electrostatic Printing of Cyclodextrin Compositions
US 9,421,793
The largest patent family in this portfolio, 5 related applications, renewed at every maintenance window due so far. Protection runs to 2035.
Compositions and Methods for Differential Release of 1-Methylcyclopropene
US 11,591,415
A family of 11 related applications built on the 2023 grant. Protection runs to 2040.
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 Dec 18, 2026The maintenance fee for Combination of Substituted Cyclodextrin Compound and Activated Carbon (US 10,323,131) comes due Dec 18, 2026. Unpaid by Jun 21, 2027, it lapses early.
- 1 fee due Jan 7, 2027The maintenance fee for Cyclodextrin Compositions, Articles, and Methods (US 9,074,106) comes due Jan 7, 2027. Unpaid by Jul 7, 2027, it lapses early.
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
What they patent
The 5 largest of its 8 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Cyclodextrin Compositions, Articles, and Methods | 5 in force | to Oct 2031 |
| Compositions and Methods for Differential Release of 1-Methylcyclopropene | 3 in force | to Jan 2042 |
| Electrostatic Printing of Cyclodextrin Compositions | 2 in force | to Apr 2036 |
| Malodor Absorbent Polymer and Fiber | 1 in force | to Mar 2030 |
| Combination of Substituted Cyclodextrin Compound and Activated Carbon | 1 in force | to May 2028 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 10,323,131 | Combination of Substituted Cyclodextrin Compound and Activated Carbon In force · Medium confidence | In force | Medium confidence | |
| US 8,241,747 | Malodor Absorbent Polymer and Fiber In force · Medium confidence | In force | Medium confidence | |
| US 8,152,902 | Packaging Material Such as Film, Fiber, Woven and Nonwoven Fabric with Adsorbancy In force · High confidence | In force | High confidence | |
| US 9,642,356 | Maturation or Ripening Inhibitor Release from Polymer, Fiber, Film, Sheet or Packaging In force · High confidence | In force | High confidence | |
| US 8,481,127 | Cyclodextrin Compositions, Articles, and Methods In force · High confidence | In force | High confidence | |
| US 9,074,106 | Cyclodextrin Compositions, Articles, and Methods In force · High confidence | In force | High confidence | |
| US 9,353,282 | Cyclodextrin Compositions, Articles, and Methods In force · High confidence | In force | High confidence | |
| US 9,675,069 | Cyclodextrin Compositions, Articles, and Methods In force · High confidence | In force | High confidence | |
| US RE49,501 | Cyclodextrin Compositions, Articles, and Methods In force · Low confidence | In force | Low confidence | |
| US 8,414,989 | Cyclodextrin Compositions, Articles, and Methods In force · High confidence | In force | High confidence |
Also on record, not counted in the 15: 26 patents ended · 11 applications pending · 2 applications abandoned. 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.
Fee due within 90 days marks a patent with a maintenance fee due within 90 days of the date this page was computed and not yet recorded paid, so it can end earlier than the bar shows. A fee left unpaid ends the patent at the close of the six month grace period that follows its due date, not on the due date itself. It is not a prediction that the fee will be missed.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.