Depomed Drug Patent Portfolio
Depomed owns 1 orange book drug protected by 4 US patents Given below is the list of Depomed's drug patents along with their expiration dates.
| Drug Patent Number | Drug Patent Title | Drug Patent Expiry | Status |
|---|---|---|---|
| US6488962 | Tablet shapes to enhance gastric retention of swellable controlled-release oral dosage forms | 20 Jun, 2020 | Expired |
| US5972389 | Gastric-retentive, oral drug dosage forms for the controlled-release of sparingly soluble drugs and insoluble matter | 19 Sep, 2016 | Expired |
| US6340475 | Extending the duration of drug release within the stomach during the fed mode | 19 Sep, 2016 | Expired |
| US6635280 | Extending the duration of drug release within the stomach during the fed mode | 19 Sep, 2016 | Expired |
Latest Legal Activities on Depomed's Drug Patents
Given below is the list of recent legal activities going on the following drug patents of Depomed.
| Activity | Date | Patent Number |
|---|---|---|
 | ||
| Review Certificate Mailed | 09 Feb, 2018 | US6635280 |
| Review Certificate | 14 Dec, 2017 | US6635280 |
| Termination or Final Written Decision | 21 Sep, 2015 | US6635280 |
| Termination or Final Written Decision | 08 Jul, 2015 | US6635280 |
| Request for Trial Denied | 29 Sep, 2014 | US6635280 |
| Request for Trial Granted | 29 Sep, 2014 | US6635280 |
| Request for Trial Granted | 10 Jul, 2014 | US6635280 |
| Petition Requesting Trial | 17 Apr, 2014 | US6635280 |
| Petition Requesting Trial | 04 Feb, 2014 | US6635280 |
| Change in Power of Attorney (May Include Associate POA) | 08 Apr, 2013 | US6635280 |
| Email Notification | 08 Apr, 2013 | US6635280 |
| Correspondence Address Change | 31 Oct, 2012 | US6635280 |
| Change in Power of Attorney (May Include Associate POA) | 28 Jul, 2008 | US6635280 |
| Correspondence Address Change | 28 Jul, 2008 | US6635280 |
| Post Issue Communication - Certificate of Correction | 26 May, 2004 | US6635280 |
Depomed's Drug Patent Litigations
Depomed's drugs have been subject to various legal proceedings, including patent litigations. The earliest legal proceeding was initiated on Apr 17, 2014, against patent number US6635280. The petitioner Endo Pharmaceutical Inc. et al., challenged the validity of this patent, with Depomed, Inc. as the respondent. Click below to track the latest information on how companies are challenging Depomed's patents.
| Patent | Proceeding Filing Date | Status | Respondent | Petitioner |
|---|---|---|---|---|
 | ||||
| US6340475 | April, 2014 |
Final Written Decision
(21 Sep, 2015)
| Depomed, Inc. | Endo Pharmaceutical Inc. et al. |
| US6635280 | April, 2014 |
Final Written Decision
(21 Sep, 2015)
| Depomed, Inc. | Endo Pharmaceutical Inc. et al. |
| US6340475 | January, 2014 |
Final Written Decision
(08 Jul, 2015)
| Depomed, Inc. | Purdue Pharma L.P. |
| US6635280 | January, 2014 |
Final Written Decision
(08 Jul, 2015)
| DepoMed, Inc. | Purdue Pharma L.P. |
| US6340475 | April, 2014 |
Institution Denied
(29 Sep, 2014)
| Depomed, Inc. | Endo Pharmaceutical Inc. et al. |
| US6635280 | April, 2014 |
Institution Denied
(29 Sep, 2014)
| Depomed, Inc. | Endo Pharmaceutical Inc. et al. |
Depomed's Family Patents
Depomed Drug List
Given below is the complete list of Depomed's drugs and the patents protecting them.
1. Proquin Xr
Proquin Xr is protected by 4 patents, out of which all have expired. Check out its patent list below.
| Drug Patent Number | Drug Patent Title | Drug Patent Expiry | Status |
|---|---|---|---|
| US6488962 | Tablet shapes to enhance gastric retention of swellable controlled-release oral dosage forms |
20 Jun, 2020
(5 years ago)
| Expired |
| US5972389 | Gastric-retentive, oral drug dosage forms for the controlled-release of sparingly soluble drugs and insoluble matter |
19 Sep, 2016
(9 years ago)
| Expired |
| US6340475 | Extending the duration of drug release within the stomach during the fed mode |
19 Sep, 2016
(9 years ago)
| Expired |
| US6635280 | Extending the duration of drug release within the stomach during the fed mode |
19 Sep, 2016
(9 years ago)
| Expired |
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 Proquin Xr's drug page