There are many sources for searching patents. While they include similar content, the search options,features, and sometimes search results often differ.
(To decipher the parts of a patent, refer to How to Read a US Patent from Queens University.)
Standards are created and used in order to ensure safety, levels of reliability, and compatibility.
You can also use the commercial sites IHS or Techstreet ,sellers of standards from many organizations, to determine relevant standards for your topic. You may submit requests for copies we don't have via the Library's Interlibrary Loan service. Availability may depend on price of standard.
Use the Library's free Interlibrary Loan service to request books, journal articles etc.