Portfolio comparison
Parsons Corp vs Hymen L. Lipman
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Parsons Corp
Patents indexed
1
Year range
1958
Most recent
1958
mechanicalmanufacturingaerospaceautomotive
Top Patents1 enriched
US 2820187· 1958
How Early Numerical Control Systems Automated Industrial Milling Machines
Activity by Decade
1950s1
Top Patents1 enriched
US 19783· 1858
How the Pencil and Eraser Became One Tool
Activity by Decade
1850s1
How to use
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