PV

Paul G. Villarrubia

IBM: 55 patents #1,485 of 70,183Top 3%
Globalfoundries: 1 patents #2,221 of 4,424Top 55%
IB International Business: 1 patents #4 of 119Top 4%
🗺 Texas: #1,357 of 125,132 inventorsTop 2%
Overall (All Time): #42,561 of 4,157,543Top 2%
57
Patents All Time

Issued Patents All Time

Showing 26–50 of 57 patents

Patent #TitleCo-InventorsDate
8782584 Post-placement cell shifting Charles J. Alpert, Zhuo Li, Gi-Joon Nam, Shyam Ramji, Lakshmi N Reddy +3 more 2014-07-15
8578315 Scheduling for parallel processing of regionally-constrained placement problem Gi-Joon Nam, Shyam Ramji, Taraneh Taghavi 2013-11-05
8555221 Partitioning for hardware-accelerated functional verification Michael D. Moffitt, Matyas A. Sustik 2013-10-08
8495534 Post-placement cell shifting Charles J. Alpert, Zhuo Li, Gi-Joon Nam, Shyam Ramji, Lakshmi N Reddy +3 more 2013-07-23
8370782 Buffer-aware routing in integrated circuit design Chuck ALPERT, Zhuo Li, Michael D. Moffitt, Chin Ngai Sze 2013-02-05
8347257 Detailed routability by cell placement Charles J. Alpert, Andrew D. Huber, Zhuo Li, Gi-Joon Nam, Shyam Ramji +4 more 2013-01-01
8327304 Partitioning for hardware-accelerated functional verification Michael D. Moffitt, Matyas A. Sustik 2012-12-04
8245173 Scheduling for parallel processing of regionally-constrained placement problem Gi-Joon Nam, Shyam Ramji, Taraneh Taghavi 2012-08-14
7996812 Method of minimizing early-mode violations causing minimum impact to a chip design Pooja M. Kotecha, Frank J. Musante, Veena S. Pureswaran, Louise H. Trevillyan 2011-08-09
7882475 Method to reduce the wirelength of analytical placement techniques by modulation of spreading forces vectors Charles J. Alpert, Gi-Joon Nam, Haoxing Ren, Natarajan Viswanathan 2011-02-01
7624366 Clock aware placement Charles J. Alpert, David J. Hathaway, William R. Migatz, Gi-Joon Nam, Haoxing Ren 2009-11-24
7581201 System and method for sign-off timing closure of a VLSI chip Michael A. Kazda, Pooja M. Kotecha, Adam P. Matheny, Lakshmi N Reddy, Louise H. Trevillyan 2009-08-25
7549137 Latch placement for high performance and low power circuits Charles J. Alpert, Shyam Ramji, Chin Ngai Sze 2009-06-16
7467369 Constrained detailed placement Charles J. Alpert, Gi-Joon Nam, Haoxing Ren 2008-12-16
7464356 Method and apparatus for diffusion based cell placement migration Charles J. Alpert, Haoxing Ren 2008-12-09
7296252 Clustering techniques for faster and better placement of VLSI circuits Charles J. Alpert, Gi-Joon Nam, Sherief Reda 2007-11-13
7089521 Method for legalizing the placement of cells in an integrated circuit layout Zahi M. Kurzum, Shyam Ramji 2006-08-08
7076755 Method for successive placement based refinement of a generalized cost function Haoxing Ren, Zahi M. Kurzum, Shyam Ramji 2006-07-11
7073144 Stability metrics for placement to quantify the stability of placement algorithms Charles J. Alpert, Gi-Joon Nam, Mehmet Can Yildiz 2006-07-04
7047163 Method and apparatus for applying fine-grained transforms during placement synthesis interaction Kanad Chakraborty, Wilm E. Donath, Prabhakar Kudva, Lakshmi N. Reddy, Leon Stok +1 more 2006-05-16
7020861 Latch placement technique for reduced clock signal skew Charles J. Alpert, Gary R. Ellis, Gi-Joon Nam 2006-03-28
6996512 Practical methodology for early buffer and wire resource allocation Charles J. Alpert, Jiang Hu 2006-02-07
6671867 Analytical constraint generation for cut-based global placement Charles J. Alpert, Gi-Joon Nam 2003-12-30
6510540 Windowing mechanism for reducing pessimism in cross-talk analysis of digital chips Byron L. Krauter, Sharad Mehrotra, Jonathan Humphrey Saxman, David J. Widiger 2003-01-21
6360350 Method and system for performing circuit analysis on an integrated-circuit design having design data available in different forms Carol Ivash Gabele, Stephen T. Quay, Parsotam T. Patel, Jean-Paul Watson 2002-03-19