[emeritus]

Driving past eh E2V site last week I noticed that the name board now says "Teledyne E2V". A quick search revealed that E2V was acquired by Teledyne in 2017. Extract from a press release follows. Seems that they are still leaders in specialised CCD imagers.:

Teledyne Completes Acquisition of e2v
THOUSAND OAKS, Calif. and CHELMSFORD, U.K. – March 28, 2017 – Teledyne Technologies Incorporated (NYSE:TDY) (“Teledyne”) and e2v technologies plc (“e2v”) jointly announced today the successful completion of the previously announced acquisition by Teledyne of e2v by means of a Scheme of Arrangement.

For the machine vision market, e2v provides high performance image sensors and custom camera solutions and application specific standard products. In addition, e2v provides high performance space qualified imaging sensors and arrays for space science and astronomy. e2v also produces components and subsystems that deliver high reliability radio frequency power generation for healthcare, industrial and defense applications. Finally, the company provides high reliability semiconductors and board-level solutions for use in aerospace, space and communications applications.

Re #22, the prosecution file of a patent will reveal any prior art cited during prosecution. Unfortunately the files of the earlier ( Pre- 1978 UK patents) no longer exist. I believe that the files of US patents are kept in perpetuity and might be accessible on line, although it is some years since I had to do this and am not sure how far back the electronic files go.