Kai Pharms Inc Drug Patent Portfolio

Kai Pharms Inc owns 1 orange book drug protected by 8 US patents Given below is the list of Kai Pharms Inc's drug patents along with their expiration dates.

Drug Patent Number Drug Patent Title Drug Patent Expiry Status
US10344765 Stable liquid formulation of AMG 416 (etelcalcetide) 27 Jun, 2034
Active
US11162500 Stable liquid formulation of AMG 416 (etelcalcetide) 27 Jun, 2034
Active
US11959486 Stable liquid formulation of AMG 416 (etelcalcetide) 27 Jun, 2034
Active
US9820938 Stable liquid formulation of AMG 416 (etelcalcetide) 27 Jun, 2034
Active
US8999932 Therapeutic agents for reducing parathyroid hormone levels 07 Feb, 2031
Active
US8377880 Therapeutic agents for reducing parathyroid hormone levels 29 Jul, 2030
Active
US9278995 Therapeutic agents for reducing parathyroid hormone levels 29 Jul, 2030
Active
US9701712 Therapeutic agents for reducing parathyroid hormone levels 29 Jul, 2030
Active


Given below is the list of recent legal activities going on the following drug patents of Kai Pharms Inc.

Activity Date Patent Number
Patent litigations
Payment of Maintenance Fee, 8th Year, Large Entity 22 Aug, 2023 US9278995
Payment of Maintenance Fee, 4th Year, Large Entity 20 Dec, 2022 US10344765
Payment of Maintenance Fee, 8th Year, Large Entity 20 Sep, 2022 US8999932
Patent Issue Date Used in PTA Calculation 02 Nov, 2021 US11162500
Recordation of Patent Grant Mailed 02 Nov, 2021 US11162500
Email Notification 14 Oct, 2021 US11162500
Issue Notification Mailed 13 Oct, 2021 US11162500
Application Is Considered Ready for Issue 04 Oct, 2021 US11162500
Dispatch to FDC 04 Oct, 2021 US11162500
Issue Fee Payment Received 02 Aug, 2021 US11162500
Issue Fee Payment Verified 02 Aug, 2021 US11162500
Email Notification 19 Jul, 2021 US11162500
Electronic Review 19 Jul, 2021 US11162500
Mail Notice of Allowance 19 Jul, 2021 US11162500
Notice of Allowance Data Verification Completed 14 Jul, 2021 US11162500


Kai Pharms Inc Drug Patents' Oppositions Filed in EPO

Kai Pharms Inc drug patents have faced multiple oppositions in the European Patent Office. The earliest opposition was filed on Jan 19, 2018, by Hexal Ag. This opposition was filed on patent number EP14742093A. Click below to reveal the latest opposition data.


Application Filing Date Opposition Party Legal Status
Patent litigations
EP17160312A Dec, 2021 Adalvo Ltd. Granted and Under Opposition
EP17160312A Dec, 2021 STADA Arzneimittel AG Granted and Under Opposition
EP17160312A Dec, 2021 Synthon BV Granted and Under Opposition
EP17160312A Dec, 2021 Fresenius Kabi Deutschland GmbH Granted and Under Opposition
EP14742093A Jan, 2018 Hexal AG Opposition rejected


Kai Pharms Inc's Family Patents

Kai Pharms Inc drugs have patent protection in a total of 43 countries. It's US patent count contributes only to 19.3% of its total global patent coverage. 2 countries have all of their patents expired or invalidated which has opened up potential generic launch opportunities in these countries. Click below to unlock the full patent family tree.

Family Patents



Kai Pharms Inc Drug List

Given below is the complete list of Kai Pharms Inc's drugs and the patents protecting them.


1. Parsabiv

Parsabiv is protected by 8 patents, out of which none have expired yet. Check out its patent list below.

Drug Patent Number Drug Patent Title Drug Patent Expiry Status
US10344765 Stable liquid formulation of AMG 416 (etelcalcetide) 27 Jun, 2034
(9 years from now)
Active
US11162500 Stable liquid formulation of AMG 416 (etelcalcetide) 27 Jun, 2034
(9 years from now)
Active
US11959486 Stable liquid formulation of AMG 416 (etelcalcetide) 27 Jun, 2034
(9 years from now)
Active
US9820938 Stable liquid formulation of AMG 416 (etelcalcetide) 27 Jun, 2034
(9 years from now)
Active
US8999932 Therapeutic agents for reducing parathyroid hormone levels 07 Feb, 2031
(6 years from now)
Active
US8377880 Therapeutic agents for reducing parathyroid hormone levels 29 Jul, 2030
(5 years from now)
Active
US9278995 Therapeutic agents for reducing parathyroid hormone levels 29 Jul, 2030
(5 years from now)
Active
US9701712 Therapeutic agents for reducing parathyroid hormone levels 29 Jul, 2030
(5 years 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 Parsabiv's drug page


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