Enzo Life Sciences, Inc.
8 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.
Recorded under 2 name spellings.
10
Ending by 2030
Jan 2027
Next term end
When these terms end
Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
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.
- 2 fees due Nov 28 to 30, 2026 · next Nov 28
- 2 fees due Dec 4 to 23, 2026 · next Dec 4
- 1 fee due Feb 4, 2027The maintenance fee for Processes and Kits for Determining Multi-Drug Resistance of Cells (US 9,097,673) comes due Feb 4, 2027. Unpaid by Aug 4, 2027, it lapses early.
- 1 fee due Jul 16, 2027The maintenance fee for Assays for Detecting Modified Compounds (US 11,874,281) comes due Jul 16, 2027. Unpaid by Jan 18, 2028, it lapses early.
- 1 fee due Sep 26, 2027The maintenance fee for Fluorescent Dyes and Methods of Use Thereof (US 11,939,350) comes due Sep 26, 2027. Unpaid by Mar 27, 2028, it lapses early.
- 2 fees due Oct 21 to 30, 2027 · next Oct 21
- 2 fees due Nov 10 to 12, 2027 · next Nov 10
Recent changes
- 2 terms have ended since Aug 17, 2026
Patents held now
Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,357,801 | Labeling of Target Molecules, Identification of Organelles and Other Applications, Novel Compositions, Methods and Kits In force · High confidence | In force | High confidence | |
| US 8,574,881 | Compositions Useful for Detection or Quantification of Desirable Target Molecules, Novel Dyes, Composite Dyes, and Oligonucleotides or Polynucleotides Comprising Such Dyes In force · High confidence | In force | High confidence | |
| US 8,759,526 | Novel Dyes, Composite Dyes, and Oligonucleotides or Polynucleotides Comprising Such Dyes - Useful or Detection or Quantification of Desirable Target Molecules In force · Medium confidence | In force | Medium confidence | |
| US 8,846,952 | Detection or Quantification of Desirable Target Molecules, Novel Dyes, Composite Dyes, and Oligonucleotides or Polynucleotides Comprising Such Dyes In force · Medium confidence | In force | Medium confidence | |
| US 9,097,673 | Processes and Kits for Determining Multi-Drug Resistance of Cells In force · High confidence | In force | High confidence | |
| US 9,404,143 | Assays for Detecting Modified Compounds In force · High confidence | In force | High confidence | |
| US 11,874,281 | Assays for Detecting Modified Compounds In force · Medium confidence | In force | Medium confidence | |
| US 11,971,419 | Hydroxycholesterol Immunoassay In force · Low confidence | In force | Low confidence | |
| US 11,181,528 | Assays for Detecting Modified Compounds In force · High confidence | In force | High confidence | |
| US 8,445,271 | Processes and Kits for Determining Multi-Drug Resistance of Cells In force · High confidence | In force | High confidence |
Also on record, not counted in the 35: 8 patents in force now held by others · 1 lapsed for an unpaid fee · 74 ended at full term. List them
Sources and methods
Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand.
How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
Published applications
US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.
1 pending · 9 abandoned · 1 no status recorded