Private equity giant Fortress Investment Group agreed to amend for a fourth time its $11 million debt and revenue share agreement with Inventergy Global Inc. (INVT), giving the struggling patent licensing company more time to execute on its strategy of enforcing patents and signing commercialization agreements with startups.

Campbell, California-based said on Thursday, Aug. 25 that the amended agreement defers the beginning of its monthly note principal amortization repayment until September 30. Secondly, it suspends the company’s obligation to maintain a $1 million minimum cash balance until September 30. Thirdly, it allows Inventergy to use up to $250,000 of revenue earned from patent sales and exclusive licenses to make certain specified payments.

In addition, the amended agreement means that after Inventergy has paid back its debt obligations to Fortress, the company may then satisfy its remaining $11.3 in revenue share obligations by paying Fortress: $8.5 million, if paid on or before September 30; $9.5 million, if paid before December 31; or $11.3 million, if paid thereafter.

In return, Fortress received a seven-year warrant to purchase 1 million shares of the Inventergy common stock with an exercise price of $2.005 a share.

Shares of Inventergy are currently trading at $1.52 a share and have traded between 71 cents and $4.70 over the past year.

Inventergy CEO Joe Beyers said in a statement “Fortress has been a solid business partner and recognizes that this near-term cash flow relief during our monetization discussions with third parties is critical to our mutual success. We anticipate meaningful results in the coming weeks.”

Under Beyers, Inventergy has formed a new unit Nventergy Innovations, which has been partnering with startups to help them commercialize and monetize their patented technology.

So far, Inventergy Innovations has signed at least four such agreements including with ProntoBux, a financial technology company that employs patented technology to provide customers with enhanced capabilities in their use of direct carrier billing. Inventergy also recently signed a similar agreement with Lopoco, a designer and manufacturer of ultra-efficient green-tech servers.

Earlier this month, Inventergy posted a second quarter net loss of $1.97 million, versus net income of $601,000, for the second quarter of 2015. For the first six months, Inventergy’s net loss was $2.46 million, versus a net loss of $6.02 million, a year ago. Revenue fell to $1.44 million from $4.18 million in the second quarter and to $1.57 million from $4.35 million in the first half.

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