18 patents currently held
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
The next term ends in Jul 2038. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
0
Ending by 2030
Jul 2038
Next term end
11
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 Apr 2041 · High confidence
Also notable
Ends Nov 2040 · High confidence
Also notable
Ends Aug 2040 · High confidence
Deuterated Compounds
US 11,773,062
Cited by 23 later US patents, top 5% of utility patents granted in 2023 in our data. Protection runs to 2041.
Synthesis of N,n-Dimethyltryptamine-Type Compounds, Methods, and Uses
US 11,643,390
Cited by 34 later US patents, top 5% of utility patents granted in 2023 in our data. Protection runs to 2040.
Injectable Formulations
US 11,406,619
Cited by 29 later US patents, top 5% of utility patents granted in 2022 in our data. 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 Jan 11, 2027The maintenance fee for 5-Methoxy-N,N-DIMETHYLTRYPTAMINE Crystalline Forms (US 11,697,638) comes due Jan 11, 2027. Unpaid by Jul 12, 2027, it lapses early.
- 2 fees due Apr 3, 2027
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
What they patent
The 5 largest of its 11 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Deuterated Compounds | 3 in force | to Jun 2041 |
| Synthesis of N,n-Dimethyltryptamine-Type Compounds, Methods, and Uses | 3 in force | to Nov 2040 |
| Deuterated or Partially Deuterated N,n-Dimethyltryptamine Compounds | 2 in force | to Nov 2041 |
| Compounds | 2 in force | to Nov 2040 |
| Injectable Formulations | 2 in force | to Aug 2040 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 11,377,416 | Crystalline Forms of Hydroxynorketamine In force · High confidence | In force | High confidence | |
| US 11,771,681 | Therapeutic Compounds In force · Medium confidence | In force | Medium confidence | |
| US 12,076,311 | Therapeutic Compositions Comprising Deuterated or Partially Deuterated N,n-Dimethyltryptamine Compounds In force · Medium confidence | In force | Medium confidence | |
| US 11,406,619 | Injectable Formulations In force · High confidence | In force | High confidence | |
| US 12,343,327 | Injectable Formulations In force · High confidence | In force | High confidence | |
| US 11,578,039 | Compounds In force · Medium confidence | In force | Medium confidence | |
| US 11,643,390 | Synthesis of N,n-Dimethyltryptamine-Type Compounds, Methods, and Uses In force · High confidence | In force | High confidence | |
| US 12,084,417 | Synthesis of N,n-Dimethyltryptamine-Type Compounds, Methods, and Uses In force · High confidence | In force | High confidence | |
| US 12,157,723 | Compounds In force · Medium confidence | In force | Medium confidence | |
| US 12,649,718 | Synthesis of N,n-Dimethyltryptamine-Type Compounds, Methods, and Uses In force · Medium confidence | In force | Medium confidence |
Also on record, not counted in the 18: 11 applications pending · 5 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.