IP Library › Granted Patent US 9,517,269
Granted Patent B1
US 9,517,269 · App. 14/617,404 · Granted Dec 13, 2016

Stable pentobarbital formulation

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 9,517,269
App. No.
14/617,404
Granted
Dec 13, 2016
Kind
B1
Abstract

The present invention relates to a pentobarbital formulation with greater stability and fewer impurities. In particular, the formulation may be an aqueous formulation containing 50 mg/mL pentobarbital sodium, 50% glycol, and 10% alcohol, at a pH of 9.4.

Claims (4)

1. A composition comprising 50 mg/mL of a pentobarbital, 50% (v/v) propylene glycol, 10% (v/v) ethanol, and water, wherein the pH of the composition is 9.0-9.5.

2. The composition of claim 1 , wherein the pentobarbital is a sodium or calcium salt of pentobarbital.

3. The composition of claim 2 , wherein the pentobarbital is a sodium salt of pentobarbital.

4. The composition of claim 1 , wherein the pH is 9.4.

Assignments (14)
RELEASE OF SECURITY INTEREST IN CERTAIN PATENTS @ REELS AND FRAMES: 053954/0755 AND 053955/0060 Recorded Jul 7, 2023
From: WILMINGTON SAVINGS FUND SOCIETY, FSB, AS ADMINISTRATIVE AGENT
To: AKORN OPERATING COMPANY LLC
Reel/Frame 064234/0872 →
CORRECTION BY DECLARATION TO NULLIFY 5 ERRONEOUSLY RECORDED PROPERTIES ON COVER SHEET AT REEL 057222 FRAME 0489. ASSIGNOR HEREBY CONFIRMS THE ORIGINAL ASSIGNMENT OF PROPERTIES EXCEPT FOR THOSE LISTED HEREIN FOR NULLIFICATION. Recorded Nov 15, 2021
From: AKORN OPERATING COMPANY LLC
To: AKORN OPERATING COMPANY LLC
Reel/Frame 058107/0600 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 18, 2021
From: AKORN OPERATING COMPANY LLC
To: MEDTECH PRODUCTS INC.
Reel/Frame 057222/0489 →
RELEASE OF SECURITY INTEREST RECORDED AT REEL/FRAME 048266/0927 Recorded Mar 29, 2021
From: JPMORGAN CHASE BANK, N.A.
To: AKORN, INC.
Reel/Frame 055835/0105 →
CORRECTIVE ASSIGNMENT TO CORRECT THE SCHEDULE OF PATENT APPLICATIONS AND GRANTED PATENTS TO BE ASSIGNED TO AKORN OPERATING COMPANY LLC PREVIOUSLY RECORDED ON REEL 054202 FRAME 0382. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Dec 1, 2020
From: AKORN, INC.; ADVANCED VISION RESEARCH, LLC; HI-TECH PHARMACAL CO., LLC
To: AKORN OPERATING COMPANY, LLC
Reel/Frame 055326/0694 →
CONFIRMATORY GRANT OF SECURITY INTEREST IN UNITED STATES PATENTS Recorded Nov 5, 2020
From: AKORN OPERATING COMPANY LLC
To: MIDCAP FUNDING IV TRUST
Reel/Frame 054333/0247 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 28, 2020
From: AKORN, INC.; ADVANCED VISION RESEARCH, LLC; HI-TECH PHARMACAL CO., LLC
To: AKORN OPERATING COMPANY, LLC
Reel/Frame 054202/0382 →
RELEASE OF SECURITY INTEREST RECORDED AT REEL/FRAME 052753/0419 Recorded Oct 1, 2020
From: WILMINGTON SAVINGS FUND SOCIETY, FSB
To: AKORN, INC.
Reel/Frame 053969/0169 →
SECURITY INTEREST Recorded Oct 1, 2020
From: AKORN OPERATING COMPANY LLC
To: WILMINGTON SAVINGS FUND SOCIETY, FSB
Reel/Frame 053954/0755 →
SECURITY INTEREST Recorded May 26, 2020
From: AKORN, INC.
To: WILMINGTON SAVINGS FUND SOCIETY, FSB
Reel/Frame 052753/0419 →
SECURITY INTEREST Recorded Apr 1, 2020
From: JPMORGAN CHASE BANK, N.A., AS RESIGNING ADMINISTRATIVE AGENT
To: WILMINGTON SAVINGS FUND SOCIETY, FSB, AS SUCCESSOR ADMINISTRATIVE AGENT
Reel/Frame 052283/0822 →
SECURITY INTEREST Recorded Feb 7, 2019
From: AKORN, INC.
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 048266/0880 →
SECURITY INTEREST Recorded Feb 7, 2019
From: AKORN, INC.
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 048266/0927 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 2, 2016
From: BRYNJELSEN, SEAN E.; PATI, BISWAJIT
To: AKORN, INC.
Reel/Frame 040195/0099 →