MPHJ Technology Investments allegedly made plenty of money last year using a rather interesting business model. First, according to a lawsuit filed by the State of Vermont, it bought patents of dubious validity that could theoretically cover basic technologies, such as the scanning of documents. Next, it and its subsidiaries sent threatening letters, with various misstatements of fact, to businesses and nonprofits around the country, alleging patent infringement and demanding payment. MPHJ never...
