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Leon Stambler competitive analysis

Latest PTAB cases involving Leon Stambler

Discover the latest PTAB cases involving Leon Stambler, highlighting their recent legal challenges and patent disputes.

Last updated on: Jul 26, 2026
Proceeding NumberFiling DatePetitionerRespondentStatus

Get alerts for PTAB Cases involving Leon Stambler

CBM2015-00044Dec 12, 2014MASTERCARD INCORPORATEDLEON STAMBLERFinal Written Decision
CBM2015-00013Oct 24, 2014MASTERCARD INCORPORATEDLEON STAMBLERInstitution Denied
CBM2014-00129May 19, 2014BMO HARRIS BANK NATIONAL ASSOCIATIONLEON STAMBLERInstitution Denied
IPR2014-00694Apr 25, 2014VISALEON STAMBLERInstitution Denied
IPR2014-00244Dec 9, 2013FIFTH THIRD BANKLEON STAMBLERInstitution Denied
IPR2013-00406Jul 1, 2013FEDERAL RESERVE BANK OF BOSTONLEON STAMBLERInstitution Denied
IPR2013-00409Jul 1, 2013FEDERAL RESERVE BANK OF BOSTONLEON STAMBLERInstitution Denied
IPR2013-00341Jun 11, 2013FEDERAL RESERVE BANK OF ATLANTALEON STAMBLERInstitution Denied

Peer Comparison New

IP litigation analysis comparing Leon Stambler with top 3 competitors. Includes complete PTAB case data and opposition data from 2018 onwards.

Last updated on: Jul 23, 2026
CompanyOppositions FiledOppositions FacedPTAB Cases FiledPTAB Cases Faced
LEON STAMBLER - - - 8
BMO HARRIS BANK NATIONAL ASSOCIATION - - 1 -
FEDERAL RESERVE BANK OF BOSTON - - 2 -
MASTERCARD INCORPORATED - - 13 -