385 patents currently held
75 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.
3 more records may belong here and await a decision; they are not counted.
The next term ends in Jan 2027. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
34
Ending by 2030
Jan 2027
Next term end
349
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 2029 · High confidence
Also notable
Ends Oct 2030 · High confidence
Also notable
Ends Sep 2034 · High confidence
Method for Culture of Stem Cell
US 10,227,563
Cited by 23 later US patents, top 25% of utility patents granted in 2019 in our data, and renewed at 2 of 3 maintenance windows. Protection runs to 2029.
Packaging Box
US D769,115
A family of 5 related applications built on the 2016 grant. Protection runs to 2030.
Microscope, Focusing Unit, Fluid Holding Unit, and Optical Unit
US 9,880,378
Granted 2018 and renewed at every maintenance window due so far. Protection runs to 2034.
Formerly held, still cited
Notable
Ends Oct 2035 · High confidence
Cited by 21 later US patents, top 5% of utility patents granted in 2022 in our data. Protection runs to 2035. A terminal disclaimer caps this term to an earlier patent's.
now held by Racthera Co., Ltd.
Also notable
Ends Jul 2034 · High confidence
The most cited patent in this portfolio, cited by 35 later US patents, top 10% of utility patents granted in 2017 in our data. Protection runs to 2034.
now held by Vedanta Biosciences, Inc.
Also notable
Ends Oct 2035 · High confidence
Cited by 15 later US patents, top 10% of utility patents granted in 2022 in our data. Protection runs to 2035. A terminal disclaimer caps this term to an earlier patent's.
now held by Racthera Co., Ltd.
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.
- 3 fees due Nov 23 to 26, 2026 · next Nov 23
- 7 fees due Dec 6 to 25, 2026 · next Dec 6
- 2 fees due Jan 2 to 9, 2027 · next Jan 2
- 2 fees due Feb 6 to 15, 2027 · next Feb 6
- 6 fees due Mar 5 to 17, 2027 · next Mar 5
- 16 fees due Apr 1 to 30, 2027 · next Apr 1
- 4 fees due May 5 to 28, 2027 · next May 5
- 8 fees due Jun 5 to 30, 2027 · next Jun 5
- 6 fees due Jul 7 to 26, 2027 · next Jul 7
- 7 fees due Aug 4 to 18, 2027 · next Aug 4
- 6 fees due Sep 3 to 24, 2027 · next Sep 3
- 10 fees due Oct 5 to 30, 2027 · next Oct 5
- 1 fee due Nov 7, 2027The maintenance fee for Optical Compensation System and Optical Compensation Method (US 11,977,219) comes due Nov 7, 2027. Unpaid by May 8, 2028, it lapses early.
Recent changes
- Oct 20Assignment recorded on 1 record: Fujii, Shin-Ichiro and 1 other to RIKEN Recorded Oct 20, 2026, executed Jul 28, 2026. Conveyance as recorded: Assignment of Assignor's Interest. A recorded assignment is a filed document, not a statement of current ownership. Reel 76434, frame 58.
- 12 of the patents on this record were granted since Aug 16, 2026
- 6 terms have ended since Aug 16, 2026
What they patent
The 5 largest of its 349 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Packaging Box | 5 in force | to Mar 2033 |
| Microscope, Focusing Unit, Fluid Holding Unit, and Optical Unit | 3 in force | to Sep 2034 |
| Method for Producing Retinal Tissue and Retina-Related Cells | 3 in force | to Aug 2034 |
| Cell for Use in Immunotherapy Which Contains Modified Nucleic Acid Construct Encoding Wilms Tumor Gene Product or Fragment Thereof, Method for Producing Said Cell, and Said Nucleic Acid Construct | 3 in force | to Jul 2033 |
| Novel Cellular Phenotype Screening Method | 2 in force | to Jul 2042 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,664,355 | Cell-free protein synthesis method with the use of linear template DNA and cell extract therefor In force · High confidence | In force | High confidence | |
| US 7,655,905 | Charged Particle Beam Equipment In force · High confidence | In force | High confidence | |
| US 7,994,483 | Gas Electron Multiplier and Manufacturing Method for Gas Electron Multiplication Foil Used for Same as Well as Radiation Detector Using Gas Electron Multiplier In force · High confidence | In force | High confidence | |
| US 10,130,094 | Pesticidal/Ovicidal Composition and Pesticidal/Ovicidal Method In force · Medium confidence | In force | Medium confidence | |
| US 8,168,407 | A Method of Synthesizing a Suppressor Trna, DNA Construct and Use Thereof for Producing a Protein Including a Non-Natural Amino Acid In force · High confidence | In force | High confidence | |
| US 7,897,226 | Adhesive Sheet and a Release Liner held by RIKEN Technos Corporation In force · High confidence | In force | High confidence | |
| US 7,758,792 | Artificial Bone Forming Method by Powder Lamination Method held by RIKEN and New X-National Technology K.K. In force · High confidence | In force | High confidence | |
| US 7,745,688 | Model Mouse of Alzheimer's Disease Expressing Fad App 716 and Use Thereof In force · High confidence | In force | High confidence | |
| US 7,932,013 | Pattern Coating Material and Pattern Forming Method held by Tokyo Ohka Kogyo Co., Ltd. and RIKEN In force · High confidence | In force | High confidence | |
| US 7,829,679 | Novel Mucin-Type Glycoprotein and Use Thereof In force · High confidence | In force | High confidence |
Also on record, not counted in the 385: 75 patents in force now held by others · 510 patents ended · 199 applications pending · 489 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.