Research - Dr. Narain Gehani

Research Interests:

E-Commerce Web Technologies Database Security Programming Languages

Patents:

Apparatus For And Method Of Displaying A Data Item Of A Database Using the Display Function of a Selected Data Item (with R.Agrawal). US Patent Number 5,412,774, granted 05/02/1995. Method For Making Data Objects Having Hidden Pointers Persistent (with A. Biliris and S. Dar). Issued on 12/31/96 as US Patent Number 5,590,327. Maintaining Consistency of Database Replicas (with M. Rabinovich). Issued on 6/9/98 as US Patent Number 5,765,171. Maintaining Consistency of Database Replicas (with A. Kononov & M. Rabinovich). Issued on 8/1/00 as US Patent Number 6,098,078 (continuation of patent number 5,765,171) Technique for Obtaining Information and Services over a Communication Network (with Vinod Anupam), European Patent number 98303057.8, 6/23/98. Technique for Obtaining Information and Services over a Communication Network (with Vinod Anupam), US Patent Number 6,070,185, May 30, 2000. Preventing Conflicts in Distributed Systems (with M. Rabinovich). Issued on 9/1/98 as US Patent Number 5,802,062. Technique for Obtaining and Exchanging Information on the World Wide Web (with Vinod Anupam and Ken Rodemann). November 23, 1999; US Patent Number 5991796. Technique for Sharing Information on the World Wide Web (with W. D. Roome). June 29, 1999; US Patent Number 5918009. Technique For Obtaining And Exchanging Information On World Wide Web (with Vinod Anupam & Ken Rodeman). US Patent Number 5991796. Geo-Enabled Personal Information Managers (with Rich Trapp and W. D. Roome). Issued on 8/31/99, US  Patent Number 5946687. Method And Apparatus For Sharing Asymmetric Information And Services In Simultaneously Viewed Documents On A Communication System (with Vinod Anupam). Issued on 03/05/2002 US Patent Number 6353851. Apparatus and Method for Sharing Information In Simultaneously Viewed Documents On A Communication System (with Vinod Anupam). Issued on 03/19/2002, US Patent Number 6360250. Apparatus and Method for Sharing Information In Simultaneously Viewed Documents On A Communication System (with Vinod Anupam). Issued on 06/25/2002, US Patent Number 6411989. Filed:  Apparatus And Method For Sharing Information In  Simultaneously Viewed Documents (with Vinod Anupam). Filed: Technique For Fine-Grained Logging Of Web User Activity  (with Vinod Anupam). Filed: Update Propagation in Epidemic Replicated Data Bases (with Misha Rabinovich). Filed: Technique For Sharing Information On World Wide Web (with Vinod Anupam). Filed:Technique For Obtaining Information And Services Over A Communication Network (with Vinod Anupam). Filed: WebDirect:  Web-Based Cooperative Browsing (with Vinod Anupam).

Software Systems Developed:

MapsOnUs (www.mapsonus.com) Launched new commercial web service Maps On Us offering maps, route planning and yellow pages . Maps On Us has been reviewed in numerous places as the best in class (during 1997) Sold it to SwitchBoard Developed business plan, marketing and sales strategy Assembled team, managed development and launch Led product management (including P&L), product development, marketing, and sales function Ode Pioneering object-oriented database that was distributed to over 500 universities and research institutions Lead to numerous research publications and some patents Concurrent C/C++ Parallel version of C and C++  that was distributed to over 700 universities and research institutions Lead to numerous research publications IP PBX Converged voice and data for a PBX Stair9 Web-based customer care center Lead to numerous patents – including one the notion of  “cobrowsing” which is used in many customer care systems Several patents Network Contact Center Puts the call center capabilities in the network Unfiied handling of voice and web customer requests LTAP Adds trigger capabilities to LDAP directories Published research papers Exceptional C Extends C by providing exception handling capabilities Published research paper