10 patents currently held
21 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 more records may belong here and await a decision; they are not counted.
The next term ends in Jan 2030. from the record
Of the 21 now held by other companies, 9 name Twitter Inc. as their current owner, and 12 more name another party. Each row says which.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
2
Ending by 2030
Jan 2030
Next term end
7
Patent families
When these terms end
Held patents by the year their term ends
notable patents
all others
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 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
Ends Dec 2038 · High confidence
Also notable
Ends Oct 2038 · High confidence
Also notable
Ends Nov 2031 · High confidence
An Apparatus and Method for Cerebral Microdialysis to Treat Neurological Disease, Including Alzheimer's, Parkinson's or Multiple Sclerosis
US 11,529,443
Cited by 24 later US patents, top 5% of utility patents granted in 2022 in our data. Protection runs to 2038.
Skull-Mounted Drug and Pressure Sensor
US 10,786,155
Cited by 19 later US patents, top 10% of utility patents granted in 2020 in our data. Protection runs to 2038.
Remotely Activated Piezoelectric Pump for Delivery of Biological Agents to the Intervertebral Disc and Spine
US 8,827,986
The most cited patent in this portfolio, cited by 75 later US patents, top 10% of utility patents granted in 2014 in our data. Protection runs to 2031.
Formerly held, still cited
Notable
Ends Aug 2028 · High confidence
Cited by 71 later US patents, top 10% of utility patents granted in 2010 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2028.
now held by Twitter, Inc.
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 Jul 30, 2027The maintenance fee for Skull-Mounted Drug and Pressure Sensor (US 11,883,203) comes due Jul 30, 2027. Unpaid by Jan 31, 2028, it lapses early.
- 2 fees due Aug 6, 2027
Recent changes
- 3 terms have ended since Aug 17, 2026
What they patent
The 4 largest of its 7 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Skull-Mounted Drug and Pressure Sensor | 4 in force | to Oct 2038 |
| Method and Apparatus for a Long-Term, Fully Implantable MRI Compatible Drug Pump | 1 in force | to Aug 2041 |
| Intratumoral Delivery of Bortezomib | 1 in force | to Oct 2040 |
| An Apparatus and Method for Cerebral Microdialysis to Treat Neurological Disease, Including Alzheimer's, Parkinson's or Multiple Sclerosis | 1 in force | to Dec 2038 |
Patents held now
Soonest term end first.
Showing 1 to 10 of 10
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,202,090 | Artificial Tooth Medicating Apparatus for Controlling, Regulating, Sensing, and Releasing Medical Agents into the Body held by Cognos Therapeutics Inc. In force · High confidence | In force | High confidence | |
| US 8,145,434 | Method and Apparatus for Forming a Homeostatic Loop Employing an Aptamer Biosensor held by Cognos Therapeutics Inc. In force · High confidence | In force | High confidence | |
| US 8,827,986 | Remotely Activated Piezoelectric Pump for Delivery of Biological Agents to the Intervertebral Disc and Spine held by Cognos Therapeutics Inc. In force · High confidence | In force | High confidence | |
| US 11,890,111 | Skull-Mounted Drug and Pressure Sensor held by Cognos Therapeutics Inc. In force · High confidence | In force | High confidence | |
| US 11,890,112 | Skull-Mounted Drug and Pressure Sensor held by Cognos Therapeutics Inc. In force · High confidence | In force | High confidence | |
| US 11,883,203 | Skull-Mounted Drug and Pressure Sensor held by Cognos Therapeutics Inc. In force · High confidence | In force | High confidence | |
| US 10,786,155 | Skull-Mounted Drug and Pressure Sensor held by Cognos Therapeutics Inc. In force · High confidence | In force | High confidence | |
| US 11,529,443 | An Apparatus and Method for Cerebral Microdialysis to Treat Neurological Disease, Including Alzheimer's, Parkinson's or Multiple Sclerosis held by Cognos Therapeutics Inc. In force · High confidence | In force | High confidence | |
| US 12,419,832 | Intratumoral Delivery of Bortezomib held by Cognos Therapeutics, Inc. In force · High confidence | In force | High confidence | |
| US 12,076,527 | Method and Apparatus for a Long-Term, Fully Implantable MRI Compatible Drug Pump held by Cognos Therapeutics Inc. In force · High confidence | In force | High confidence |
Also on record, not counted in the 10: 21 patents in force now held by others · 104 patents ended · 2 applications pending · 40 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.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.