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Keith Eugene Hollenbach — 17 Patents

ASAgere Systems: 9 patents #126 of 1,849Top 7%
AGAgere Systems Guardian: 4 patents #47 of 810Top 6%
ATAT&T: 4 patents #4,409 of 18,772Top 25%
Reading, PA: #12 of 514 inventorsTop 3%
Pennsylvania: #4,187 of 74,527 inventorsTop 6%
Overall (All Time): #263,971 of 4,157,543Top 7%
17 Patents All Time
Keith Eugene Hollenbach has been granted 17 US patents while listed as an inventor at Agere Systems. The first was granted in 1999 and the most recent in February 2006. Keith Eugene Hollenbach ranks #263,971 of 4,157,543 US inventors in our database (top 6.3%). Patent records list Keith Eugene Hollenbach in Reading, PA, US.

Patents per Year

Patents granted per year, 1999 to 2006Bar chart with a peak of 6 patents in 2004.peak 61999: 2 patents19992001: 3 patents20012002: 3 patents20022003: 1 patents20032004: 6 patents20042005: 1 patents20052006: 1 patents2006

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6999581 Event detection circuit Tony S. El-Kik, Donald R. Laturell, Steven B. Witmer 2006-02-14 $7,670,000
6920218 Combination clock and charge pump for line powered DAA Timothy W. Fuehrer, Donald R. Laturell, Steven B. Witmer 2005-07-19 $8,242,000
6763107 Method and apparatus for reducing distortion in a line powered modulator circuit Jonathan H. Fischer, Donald R. Laturell, Lane A. Smith, Weilin Zhu 2004-07-13
6744888 Line interface circuit with event detection signaling Tony S. El-Kik, Donald R. Laturell, Steven B. Witmer 2004-06-01
6735305 Detection of low tip/ring currents in a line powered DAA Jonathan H. Fischer, Donald R. Laturell, Lane A. Smith, Michael S. Toth, Michael G. Williams +1 more 2004-05-11
6731728 Low noise line powered DAA with differential feedback Donald R. Laturell, Steven B. Witmer 2004-05-04
6728371 Method and apparatus for stabilization of a line powered modulator circuit Jonathan H. Fischer, Donald R. Laturell, Lane A. Smith, Weilin Zhu 2004-04-27
6674857 Startup procedure for international line powered DAA Jonathan H. Fischer, Donald R. Laturell, Lane A. Smith, Michael S. Toth, Weilin Zhu 2004-01-06
6621904 Pre-charging line modem capacitors to reduce DC setup time Jonathan H. Fischer, Donald R. Laturell, Lane A. Smith, Weilin Zhu 2003-09-16
6421430 Line powered DAA with single ended feedback Donald R. Laturell, Steven B. Witmer 2002-07-16
6418220 Extended feedback circuit employing capacitive coupling and sampled data filters Jonathan H. Fischer, Donald R. Laturell, Steven B. Witmer 2002-07-09
6396877 Method and apparatus for combining serial data with a clock signal Donald R. Laturell, Steven B. Witmer 2002-05-28 $3,593,000
6275581 Extended feedback circuit employing capacitive coupling and sampled data filters Jonathon Fischer, Donald R. Laturell, Steven B. Witmer 2001-08-14 $6,042,000
6205219 Call related information reception using sigma/delta modulation Donald R. Laturell, Steven B. Witmer 2001-03-20 $23,327,000
6198944 Method for telephone line interlock and cellular interconnect Donald R. Laturell, Steven B. Witmer 2001-03-06 $22,775,000
5912513 Method and apparatus for reducing power dissipation in DC termination circuit Donald R. Laturell, Steven B. Witmer 1999-06-15 $58,217,000
5877565 Communication card with telephone line interlock and cellular interconnect Donald R. Laturell, Steven B. Witmer 1999-03-02 $55,366,000

Frequent Collaborators

Donald R. Laturell17 shared
Steven B. Witmer12 shared
Jonathan H. Fischer6 shared
Lane A. Smith5 shared
Weilin Zhu5 shared
Michael S. Toth2 shared

Nearby-Ranked Inventors

Michael John Caelwaerts17
Umut Zalluhoglu17
Austino Longo17
Till Bredbeck17
Mircea Grigore17
Achim Klein17
Manesh Nadupparambil Sekharan17
Yoshiaki Nishikawa17
Evan Sparks17