Needed: Two English Privy Council Cases

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Moyer, Vincent

Mar 7, 2023, 1:58:45 PMMar 7
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Dear Int-Law Colleagues:


I’m hoping someone can help us retrieve two English Privy Council cases recently cited by the U.S. Supreme Court:


(1)- Board of Ordnance v. Wilkinson, PC2/123 (1779)

(2)- Board of Ordnance v. Parr, PC1/3919 (1810)


We have a good collection of Privy Council law reports in print and online, but I have had no luck so far searching our library collection.


These two cases were cited by the U.S. Supreme Court in the 2018 case, Oil States Energy Services, LLC v. Greene’s Energy Group, LLC.  [We have this Supreme Court case.]


Both cases are patent cases.  They are summarized in a 2017 SSRN article by Prof Tomas Gomez-Arostegui (Lewis & Clark Law School) and Prof Sean Bottomley (Northumbria University) at


William Parr held a patent for gunpowder.  The Parr case is described as an unresolved petition lodged with the Privy Council involving wartime munitions.


John Wilkinson held a patent for casting iron cannons.  In the Wilkinson case, a wartime munitions patent is revoked.   


If anyone can help us locate these cases (or even tell us where these cases are reported), your efforts will be much appreciated. 


Thank you in advance.  There is no rush.






Vincent Moyer

International Law Librarian

University of California College of the Law San Francisco (UCLSF) Library

(Formerly, UC Hastings College of the Law Library)

San Francisco, California (USA)


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