Six patents currently held, every record listed here
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
The next term ends in Feb 2033. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
0
Ending by 2030
Feb 2033
Next term end
4
Patent families
When these terms end
Each bar runs from grant to computed term end. 2019 to 2043.
US 10,228,312
Chromatographic Isolation of Cells and Other Complex Biological Materials
Feb 25, 2033
US 12,135,265
Chromatographic Isolation of Cells and Other Complex Biological Materials
Sep 10, 2034
20242029203420392043
7 pending applications: term is not computable until grant.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 patents
Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
Notable
Ends Feb 2033 · High confidence
Also notable
Ends Feb 2039 · High confidence
Also notable
Ends Jul 2039 · High confidence
Chromatographic Isolation of Cells and Other Complex Biological Materials
US 10,228,312
The most cited patent in this portfolio, cited by 33 later US patents, top 10% of utility patents granted in 2019 in our data. Protection runs to 2033.
Cell Surface Conjugates and Related Cell Compositions and Methods
US 11,517,627
Granted 2022. Computed term ends 2039.
Methods for Culturing Cells and Kits and Apparatus for Same
US 11,913,024
Granted 2024. Too new for citation comparison; protection runs to 2039.
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 Aug 27, 2027The maintenance fee for Methods for Culturing Cells and Kits and Apparatus for Same (US 11,913,024) comes due Aug 27, 2027. Unpaid by Feb 28, 2028, it lapses early.
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
What they patent
Grouped by real patent family, largest first, labeled by the earliest filing in each. No technology classification is inferred from titles.
| Chromatographic Isolation of Cells and Other Complex Biological Materials | 3 in force | to Sep 2034 |
| Methods for Selection and Stimulation of Cells and Apparatus for Same | 1 in force | to Feb 2043 |
| Methods for Culturing Cells and Kits and Apparatus for Same | 1 in force | to Jul 2039 |
| Cell Surface Conjugates and Related Cell Compositions and Methods | 1 in force | to Feb 2039 |
Patents held now
Soonest term end first.
Showing 1 to 6 of 6
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 10,228,312 | Chromatographic Isolation of Cells and Other Complex Biological Materials In force · High confidence | In force | High confidence | |
| US 12,066,365 | Chromatographic Isolation of Cells and Other Complex Biological Materials In force · High confidence | In force | High confidence | |
| US 12,135,265 | Chromatographic Isolation of Cells and Other Complex Biological Materials In force · Medium confidence | In force | Medium confidence | |
| US 11,517,627 | Cell Surface Conjugates and Related Cell Compositions and Methods In force · High confidence | In force | High confidence | |
| US 11,913,024 | Methods for Culturing Cells and Kits and Apparatus for Same In force · High confidence | In force | High confidence | |
| US 12,522,660 | Methods for Selection and Stimulation of Cells and Apparatus for Same In force · High confidence | In force | High confidence |
Also on record, not counted in the 6: 1 patent ended · 7 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.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.