Bertram C. Johnson — 14 Patents at Spectra-Physics

Bertram C. Johnson has been granted 14 US patents while listed as an inventor at Spectra-Physics. The first was granted in 1981 and the most recent in February 2017. Bertram C. Johnson ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list Bertram C. Johnson in Milpitas, CA, US.

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #	Title	Co-Inventors	Date
9568803	Cascaded optical harmonic generation	James J. Morehead, Loren Eyres, Martin H. Muendel, Derek A. TUCKER	2017-02-14
5477378	Multiple crystal non-linear frequency conversion apparatus	—	1995-12-19
5390211	Optical parametric oscillator with unstable resonator	James B. Clark	1995-02-14
5272713	High repetition rate pulsed laser	Mark S. Sobey, Glen R. Blevins	1993-12-21
5001716	Tunable electro-optic Q-switch, and lasers using same	Richard L. Herbst, Glen R. Blevins	1991-03-19
4955725	Laser oscillator/amplifier with compensation for stress birefringence	Richard L. Herbst	1990-09-11
4935932	Apparatus using induced birefringence to improve laser beam quality	John C. DiFonzo, Richard L. Herbst	1990-06-19
4918395	Multipass laser amplifier with at least one expanded pass	John C. DiFonzo	1990-04-17
4894837	Absorbing filter in pump cavity for control of beam quality	John C. DiFonzo	1990-01-16
4873692	Pulsed tunable solid state laser	John C. DiFonzo, Richard L. Herbst	1989-10-10
4872181	Laser resonator with laser medium exhibiting thermally induced birefringence	Richard L. Herbst	1989-10-03
4612785	Dials for circular knitting machines	Arthur Ramsden Smith	1986-09-23
4404821	Yarn feeder and changer unit	Arthur Ramsden Smith	1983-09-20
4253316	Shogging mechanisms	Osmond H. Ecob	1981-03-03

Bertram C. Johnson — 14 Patents

Issued Patents All Time

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