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USPTO Patent Rankings Data through Dec 31, 2025
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David P. Chadra — 6 Patents

BUBurroughs: 6 patents #23 of 604Top 4%
Anaheim, CA: #187 of 1,337 inventorsTop 15%
California: #94,478 of 386,348 inventorsTop 25%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
David P. Chadra has been granted 6 US patents while listed as an inventor at Burroughs. The first was granted in 1982 and the most recent in November 1983. David P. Chadra ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list David P. Chadra in Anaheim, CA, US.

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
4415986 Data flow control system 1983-11-15 $5,988,000
4386415 Compare logic circuit for train printer-data link processor 1983-05-31 $8,464,000
4371948 Train printer-data link processor 1983-02-01 $2,768,000
4371950 Peripheral control interface circuit for train printer-data link processor 1983-02-01 $2,768,000
4370730 Ram buffer memory circuit system for train printer-data link processor 1983-01-25 $4,790,000
4357681 Line turn circuit for data link 1982-11-02 $6,252,000