Oil and gas extraction — US PTAB Patent Cases
12 decisions indexed
Page 1 of 1 · 12 total
WEATHERFORD U.S., L.P. et al. v.Halliburton Energy Services, Inc. et al.
The USPTO denied Weatherford's request for Director Review of the Final Written Decision in IPR2024-00990 concerning Halliburton's oilfield patent 11,333,007 B2.
Liberty Energy, Inc. et al. v.U.S. Well Services, LLC
The USPTO denied Liberty Energy's request for Director Review of the institution decision in IPR2025-00031, leaving the IPR proceeding intact.
Liberty Energy Inc. et al. v.U.S. Well Services, LLC
Liberty Energy and U.S. Well Services settled their IPR dispute over patent 11,208,878, resulting in a joint motion to terminate the proceeding. The Board granted termination and kept the settlement confidential.
Liberty Energy Inc. et al. v.U.S. Well Services, LLC et al.
Liberty Energy has petitioned the PTAB to institute an IPR against U.S. Well Services’ hydraulic fracturing patent, arguing that claims 1‑14 are obvious over multiple prior‑art references. The petition seeks cancellation of all challenged claims under 35 U.S.C. §103.
Pharaoh Energy Services, LLC v.Flex-Chem Holding Company, LLC et al.
Pharaoh Energy Services has filed an IPR petition seeking to invalidate Flex‑Chem’s 9,944,843 well‑stimulation patent. The petition relies on Frenier and Reyes as prior art to argue anticipation and obviousness of all 13 claims. The Board has yet to decide whether to institute the review.
Liberty Energy, Inc. et al. v.U.S. Well Services, LLC
U.S. Well Services seeks Director Review to overturn the PTAB’s institution of an IPR covering claims 1‑19 of its oilfield‑services patent, arguing the Board misapplied the Fintiv discretionary‑denial factors after a district court denied a stay.
Liberty Energy Services LLC et al. v.U.S. WELL SERVICES, LLC et al.
Liberty Energy has petitioned the PTAB to institute an IPR against U.S. Well Services' ’801 patent covering a mobile hydraulic fracturing power system. The petition asserts that all 20 claims are obvious over combinations of existing power‑distribution references and seeks cancellation of the claims.
Liberty Energy Inc. et al. v.U.S. Well Services, LLC et al.
Liberty Energy petitions the PTAB to institute an IPR against U.S. Well Services' 11,959,533 patent covering multi‑plunger hydraulic fracturing pumps. The petition asserts that all 25 claims are obvious under §103, relying on a series of prior‑art combinations and argues that institution is proper under the Fintiv and Becton factors.
Liberty Energy, Inc. et al. v.U.S. Well Services, LLC
Liberty Energy and U.S. Well Services settled their IPR disputes, leading the PTAB to terminate the proceedings and keep the settlement confidential.
Liberty Energy Inc. et al. v.U.S. Well Services, LLC
Liberty Energy and Liberty Oilfield Services filed a detailed response defending the institution of IPR2025‑00139 against U.S. Well Services’ request for a Director’s discretionary denial. The brief leans heavily on Fintiv precedent and argues that the Board’s factual findings are correct and that the patent’s claims remain vulnerable to three prior‑art combinations.
Liberty Energy Inc. et al. v.U.S. Well Services, LLC
The PTAB denied U.S. Well Services’ request to file new Director Review submissions in IPR2025‑00139, leaving the institution of the proceeding intact. The dispute centers on alleged violations of a Sotera stipulation by the petitioners in parallel district‑court litigation.
Liberty Energy Inc. et al. v.U.S. Well Services, LLC
The USPTO Director denied Liberty Energy’s request for a review of the institution decision on U.S. Patent 11,208,878, leaving the patent’s institution intact.
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