X4 Pharma Drug Patent Portfolio

X4 Pharma owns 1 orange book drug protected by 6 US patents Given below is the list of X4 Pharma's drug patents along with their expiration dates.

Drug Patent Number Drug Patent Title Drug Patent Expiry Status
US10548889 Compositions of CXCR4 inhibitors and methods of preparation and use 11 Dec, 2038
Active
US11045461 Compositions of CXCR4 inhibitors and methods of preparation and use 11 Dec, 2038
Active
US12115156 Compositions of CXCR4 inhibitors and methods of preparation and use 11 Dec, 2038
Active
US10610527 Methods for treating immunodeficiency disease 22 Dec, 2036
Active
US11219621 Methods for treating immunodeficiency disease 22 Dec, 2036
Active
US10953003 Methods for treating cancer 14 Dec, 2036
Active


Given below is the list of recent legal activities going on the following drug patents of X4 Pharma.

Activity Date Patent Number
Patent litigations
Payment of Maintenance Fee, 4th Yr, Small Entity 11 Jul, 2025 US11219621
Information Disclosure Statement (IDS) Filed 16 Jun, 2025 US11219621
transaction for FDA Determination of Regulatory Review Period 16 Jun, 2025 US10953003
transaction for FDA Determination of Regulatory Review Period 16 Jun, 2025 US10610527
transaction for FDA Determination of Regulatory Review Period 16 Jun, 2025 US11219621
Payment of Maintenance Fee, 4th Yr, Small Entity 30 Dec, 2024 US11045461
Mail Patent eCofC Notification 10 Dec, 2024 US12115156
Patent eCofC Notification 10 Dec, 2024 US12115156
Email Notification 10 Dec, 2024 US12115156
Recordation of Patent eCertificate of Correction 10 Dec, 2024 US12115156
Post Issue Communication - Certificate of Correction 20 Nov, 2024 US12115156
Second letter to regulating agency to determine regulatory review period 18 Oct, 2024 US10953003
Second letter to regulating agency to determine regulatory review period 18 Oct, 2024 US11219621
Second letter to regulating agency to determine regulatory review period 18 Oct, 2024 US10610527
Patent eGrant Notification 15 Oct, 2024 US12115156


X4 Pharma's Family Patents


Family Patents



X4 Pharma Drug List

Given below is the complete list of X4 Pharma's drugs and the patents protecting them.


1. Xolremdi

Xolremdi is protected by 6 patents, out of which none have expired yet. Check out its patent list below.

Drug Patent Number Drug Patent Title Drug Patent Expiry Status
US10548889 Compositions of CXCR4 inhibitors and methods of preparation and use 11 Dec, 2038
(12 years from now)
Active
US11045461 Compositions of CXCR4 inhibitors and methods of preparation and use 11 Dec, 2038
(12 years from now)
Active
US12115156 Compositions of CXCR4 inhibitors and methods of preparation and use 11 Dec, 2038
(12 years from now)
Active
US10610527 Methods for treating immunodeficiency disease 22 Dec, 2036
(10 years from now)
Active
US11219621 Methods for treating immunodeficiency disease 22 Dec, 2036
(10 years from now)
Active
US10953003 Methods for treating cancer 14 Dec, 2036
(10 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 Xolremdi's drug page


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