https://inventhelp.com › Inventors › FreeInfo
广告We help everyday inventors patent & submit ideas to companies! Free information. We Help Everyday Inventors
For Everyday Inventors · Helping Since 1984 · Confidential · Submission to Companies
Service catalog: Patent referrals, Invention submission, Website development
1900 Polaris Parkway Suite 450, Columbus · 12.5 英里 · (614) 215-9972