Cygan; Lawrence F.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Cygan; Lawrence F..The latest application filed is for "circuit with one or more depletion mode transistors".

Company Profile

0.16.4

Cygan; Lawrence F. - Schaumburg IL

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Circuit with a voltage dependent resistor for controlling an on/off state of a transistor Grant 8,149,027 - Cygan , et al. April 3, 2	2012-04-03
Method and apparatus for direct digital to radio frequency conversion Grant 7,825,724 - Cygan , et al. November 2, 2	2010-11-02
Circuit With One Or More Depletion Mode Transistors App 20100001701 - Cygan; Lawrence F. ; et al.	2010-01-07
Method And Apparatus For Direct Digital To Radio Frequency Conversion App 20090153242 - Cygan; Lawrence F. ; et al.	2009-06-18
Method and apparatus for an enhanced efficiency power amplifier Grant 7,071,775 - Gailus , et al. July 4, 2	2006-07-04
Method and apparatus for an enhanced efficiency power amplifier App 20050280466 - Gailus, Paul H. ; et al.	2005-12-22
Multilayered tapered transmission line, device and method for making the same Grant 6,556,099 - Khan , et al. April 29, 2	2003-04-29
Multilayered tapered transmission line, device and method for making the same App 20020097110 - Khan, Andrew Merritt ; et al.	2002-07-25
Efficient multimode power amplifier Grant 6,374,092 - Leizerovich , et al. April 16, 2	2002-04-16
High efficiency power amplifier having reduced output matching networks for use in portable devices Grant 6,262,629 - Stengel , et al. July 17, 2	2001-07-17
Apparatus and method for amplifying an amplitude-varying signal Grant 6,085,074 - Cygan July 4, 2	2000-07-04
High efficiency power amplifier Grant 5,880,633 - Leizerovich , et al. March 9, 1	1999-03-09
Method and apparatus for an improved linear transmitter Grant 5,675,286 - Baker , et al. October 7, 1	1997-10-07
Digital DC correction circuit for a linear transmitter Grant 5,675,287 - Baker , et al. October 7, 1	1997-10-07
Method and apparatus for reducing off-channel interference produced by a linear transmitter Grant 5,574,992 - Cygan , et al. November 12, 1	1996-11-12
Method and apparatus for a linear transmitter Grant 5,564,087 - Cygan , et al. October 8, 1	1996-10-08
Method and apparatus for enhancing an operating characteristic of a radio transmitter Grant 5,564,086 - Cygan , et al. October 8, 1	1996-10-08
Method for a transmitter to compensate for varying loading without an isolator Grant 5,423,082 - Cygan , et al. June 6, 1	1995-06-06
Broadband RF transformer Grant 5,015,972 - Cygan , et al. May 14, 1	1991-05-14
Grounding and positioning clip for a power transistor Grant 4,504,886 - Cygan , et al. March 12, 1	1985-03-12

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