Indeed others. Try this one from SMC (Now SMSC):
 http://www.smsc.com/main/catalog/usb97c100.html

Tom

On Friday, March 06, 1998 4:58 AM, Steve Lawther [SMTP:slawther@HUSKY.CO.UK]
 wrote:
>      >Does anyone know anything about interfacing with USB connection?
>      >I'm trying to build a PIC Programmer that also interfaces with the
>      >USB connection.  Is it possible to?  Does anyone have any information
>      >on how to write software that interfaces with USB?..
>
>      >Thanks
>      >John
>
>      John,
>
>      I had that thought also - USB saves having a power supply brick.
>
>      If you have Win95 OSR2.1 (unstable), or a beta of win98 (better), I
>      recommend getting the cypress starter kit - 99USD.
>
>      For data, read all the USB starter pages and summaries you can find.
>      Also grab the USB spec from www.usb.org though you are warned it's
>      long - well over 300 page with clarifications, ...and the plot is
>      rubbish!.
>
>      If you haven't got the win95 OSR2.1 (OEM only ie only supplied with
>      new computers - not in the shops) or win98 beta you'll have to wait
>      'til 98 is out.
>
>      There is a lot of chips out there; see below
>      There's also a lot of USB products in the wings, waiting to launch on
>      the back of Win98 (I've got my USB mouse thou! - makes a change to
>      have state-of-art rather than state-of-the-ark).
>
>
>                 Steve Lawther
>
>
>      APPENDIX (ie don't bother reading unless a 'trainspotter')
>
>
[URL's deleted]
>
>
>      There are others