Patent drawing tools
Make the flowchart or block diagram your application needs from text you already wrote, then check the sheet against the measurable rules of 37 CFR 1.84 before you file.
Patent flowchart maker
Paste a method description and get a filing-style flowchart with one box per step, numbered to match your text. Edit every box afterwards.
Patent block diagram maker
Describe a system and get a block diagram with named modules, labeled connections and reference numerals outside the boxes.
Patent drawing checker
Upload any drawing PDF and check margins, black lines, letter height, FIG. labels and sheet numbers against 37 CFR 1.84. Free; files stay in your browser.
The flowchart and block diagram makers use credits (5 free on sign-up, no card); editing is free. The drawing checker is free and needs no account. New to this? Start with the filing guide or the 37 CFR 1.84 checklist.