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USPTO Patent Rankings Data through Dec 31, 2025
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Frederick L. Lau — 13 Patents

SWSwitchcraft: 13 patents #1 of 25Top 4%
Skokie, IL: #49 of 674 inventorsTop 8%
Illinois: #6,713 of 84,256 inventorsTop 8%
Overall (All Time): #362,438 of 4,157,543Top 9%
13 Patents All Time
Frederick L. Lau has been granted 13 US patents while listed as an inventor at Switchcraft. The first was granted in 1986 and the most recent in January 1996. Frederick L. Lau ranks #362,438 of 4,157,543 US inventors in our database (top 8.7%). Patent records list Frederick L. Lau in Skokie, IL, US.

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5485673 Environmental connector 1996-01-23 $18,911,000
5098317 Slip resistant connective device 1992-03-24 $5,204,000
4938717 Reinforced jack plug 1990-07-03 $4,257,000
4874317 Jackfield with front terminals 1989-10-17 $7,962,000
4826455 Terminal contact assembly Arnold A. Case, Emma Basov 1989-05-02 $6,628,000
4826439 Self-latching lamp jack 1989-05-02 $6,628,000
4820200 Slab-like jack module 1989-04-11 $12,334,000
4797114 Jack circuit board assembly 1989-01-10 $4,423,000
4784609 Jack module with lamp assembly 1988-11-15 $8,147,000
4772562 Jackfield with split front panel 1988-09-20 $2,716,000
4770639 Channelized jackfield 1988-09-13 $7,192,000
4768961 Jackfield with front removable jack modules having lamp assemblies 1988-09-06 $11,090,000
4609795 Vibration protected switch Vernon W. Lavigne, Keith A. Rosborough 1986-09-02 $23,938,000