Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David J. Royle — 12 Patents

ACActerna: 5 patents #1 of 73Top 2%
UNUnknown: 2 patents #12,644 of 83,584Top 20%
VSViavi Solutions: 2 patents #158 of 390Top 45%
JUJds Uniphase: 1 patents #393 of 940Top 45%
TTTelecommunications Techniques: 1 patents #5 of 7Top 75%
Rockville, MD: #195 of 2,038 inventorsTop 10%
Maryland: #2,507 of 35,612 inventorsTop 8%
Overall (All Time): #396,045 of 4,157,543Top 10%
12 Patents All Time
David J. Royle has been granted 12 US patents while listed as an inventor at Acterna. The first was granted in 2000 and the most recent in December 2025. David J. Royle ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list David J. Royle in Rockville, MD, US.

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12498676 Satellite signal propagation delay test device Mikhail Charny, Joseph Gomez, Roland Stooss 2025-12-16
12130368 Satellite signal propagation delay test device Joseph Gomez 2024-10-29 $8,746,000
11167156 Smoke ventilation Danish Ahmad 2021-11-09
10265552 Smoke ventilation Danish Ahmad 2019-04-23
10142043 Time differential digital circuit 2018-11-27 $8,214,000
8310383 Generating a jittered digital signal using a serializer device Mikhail Charny 2012-11-13 $11,863,000
7769297 Driving multiple transceiver modules with a single SERDES transceiver chip Walter Hargis, Mikhail Charny 2010-08-03
7477521 Isolating stress on a printed circuit board Mikhail Charny 2009-01-13
6738454 Modular test instrument Ali M. Mohammadian 2004-05-18
6590963 Modular test instrument Ali M. Mohammadian 2003-07-08
6385300 Modular test instrument Ali M. Mohammadian 2002-05-07 $3,474,000
6064721 Modular test instrument Ali M. Mohammadian 2000-05-16