Douglas Drug Patent Portfolio
Douglas owns 1 orange book drug protected by 1 US patent Given below is the list of Douglas's drug patents along with their expiration dates.
| Drug Patent Number | Drug Patent Title | Drug Patent Expiry | Status |
|---|---|---|---|
| US8057811 | Stable clozapine suspension formulation | 01 May, 2028 | Active |
Latest Legal Activities on Douglas's Drug Patents
Given below is the list of recent legal activities going on the following drug patents of Douglas.
| Activity | Date | Patent Number |
|---|---|---|
 | ||
| Payment of Maintenance Fee, 12th Year, Large Entity | 10 May, 2023 | US8057811 |
| Payment of Maintenance Fee, 8th Year, Large Entity | 07 Feb, 2019 | US8057811 |
| Entity Status Set To Undiscounted (Initial Default Setting or Status Change) | 05 May, 2015 | US8057811 |
|
Patent Issue Date Used in PTA Calculation
Critical
| 15 Nov, 2011 | US8057811 |
|
Recordation of Patent Grant Mailed
Critical
| 15 Nov, 2011 | US8057811 |
|
Email Notification
Critical
| 28 Oct, 2011 | US8057811 |
|
Issue Notification Mailed
Critical
| 26 Oct, 2011 | US8057811 |
| Dispatch to FDC | 14 Oct, 2011 | US8057811 |
|
Application Is Considered Ready for Issue
Critical
| 11 Oct, 2011 | US8057811 |
|
Issue Fee Payment Verified
Critical
| 23 Sep, 2011 | US8057811 |
|
Issue Fee Payment Received
Critical
| 23 Sep, 2011 | US8057811 |
|
Mail Notice of Allowance
Critical
| 16 Sep, 2011 | US8057811 |
|
Electronic Review
Critical
| 16 Sep, 2011 | US8057811 |
|
Email Notification
Critical
| 16 Sep, 2011 | US8057811 |
|
Notice of Allowance Data Verification Completed
Critical
| 13 Sep, 2011 | US8057811 |
Douglas's Family Patents
Clinical Trials
Recent Clinical Trials by Douglas:
| Title | Lead Sponsor | Collaborators | Status | Phases |
|---|---|---|---|---|
 | ||||
| Vaginal Microbiota Transplant | Douglas Kwon | NA |
RECRUITING
(Sep 1, 2026)
| PHASE1, PHASE2 |
| Brexpiprazole Treatment for Bipolar I Depression | Douglas Mental Health University Institute | NA |
RECRUITING
(Aug 1, 2026)
| PHASE3 |
| Pacritinib in CMML | Douglas Tremblay | NA |
RECRUITING
(Aug 1, 2026)
| PHASE1, PHASE2 |
| Imetelstat Combinations in Relapsed AML | Douglas Tremblay | NA |
RECRUITING
(Apr 1, 2026)
| PHASE1 |
| MOTIF@FRESH: Modifying Organisms Transvaginally in Females @ FRESH | Douglas Kwon | NA |
NOT YET RECRUITING
(Apr 1, 2026)
| PHASE2 |
Douglas Drug List
Given below is the complete list of Douglas's drugs and the patents protecting them.
1. Versacloz
Versacloz is protected by 1 patent, which is still active. Check out its patent list below.
| Drug Patent Number | Drug Patent Title | Drug Patent Expiry | Status |
|---|---|---|---|
| US8057811 | Stable clozapine suspension formulation |
01 May, 2028
(1 year, 6 months from now)
| Active |
Discover which of these patents contain the active ingredient(API) of the drug, their family patents, along with litigation and legal activity details of these patents on Versacloz's drug page